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At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
Anyone know at what PSI a typical plastic soda bottle explodes?
I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi. http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 6 Apr 2010 20:34:49 +0000 (UTC), Elmo wrote:
Nothing happened (with respect to explosions). Do you have data points showing when soda bottles explode? They do explode. http://www.stevespangler.com/teachin...s-like-a-bomb/ The question is the pressure at which they explode. Glass bottles explode from 70 to 100psi. Soda bottles can go way over 200 psi. Call Coca Cola's information line 800-438-2653, 800-638-3286, or 800-888-6488 and let us know what they tell you. |
At what PSI does a plastic soda bottle explode? (home CO2carbonation)
On Apr 6, 1:34*pm, Elmo dcdraftwo...@Use-Author-Supplied-
Address.invalid wrote: Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi.http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. If you don't believe your own gauges, why would you believe anonymous blather posted on the net? If you think your gauges are messed up, try different gauges and see. |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 6 Apr 2010 13:43:42 -0700, LM wrote:
Glass bottles explode from 70 to 100psi. Soda bottles can go way over 200 psi. Call Coca Cola's information line 800-438-2653 I'm on the line with them right now! They are very helpful! They do the research for you, while you wait. So far, the woman says the maximum psi the package can withstand is based on the volume of carbonation and type of fluid it contains. Digging more, she says every one of their carbonated PET containers from 20 ounces to 2 liters can withstand the industry standard 150 psi. In addition, some Coke products have PET packaging that can withstand up to 250 psi (it all depends on the type of product in the package). They're gonna send me via email WHICH bottles can withstand 250 psi as the lady said she had to sent that over to the Research Department. Of course, I'm using Trader Joe's (very thick) plastic bottles so I'm not sure how much of this applies; but, maybe that explains why I had no explosions at 150psi yesterday. It's great to learn from everyone here. If you have any information about when a soda bottle explodes, please post the reference here! |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
At 150 PSI, they would be useful as expansion tanks for air
compressors. Now, someone to make a manifold so we can string together a bunch of two or three liter bottles. Watch. Harbor Freight will have them next week. -- Christopher A. Young Learn more about Jesus www.lds.org .. "Elmo" wrote in message ... Digging more, she says every one of their carbonated PET containers from 20 ounces to 2 liters can withstand the industry standard 150 psi. In addition, some Coke products have PET packaging that can withstand up to 250 psi (it all depends on the type of product in the package). |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 6 Apr 2010 13:47:03 -0700 (PDT), mike wrote:
If you don't believe your own gauges, why would you believe anonymous blather posted on the net? If you think your gauges are messed up, try different gauges and see. My gauges are old. I don't want blather. I want facts. And references. I always search first, so, I already did my search and posted the results. But maybe someone else out there is a better searcher than I am and can provide a reference. Surely I'm not the best there is. I did follow up on the suggestion to call Coke (even though I'm using Trader Joe's bottles). The Coke plastic PETE bottles (from 20 oz to 2 liters) are either tested to 150 psi or to 250 psi (I'm waiting for them to confirm by mail which ones). It would be nice to have more references though as I can't be the best Internest searchist out there.... |
At what PSI does a plastic soda bottle explode? (home CO2carbonation)
On Apr 6, 4:34*pm, Elmo dcdraftwo...@Use-Author-Supplied-
Address.invalid wrote: Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi.http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. Stolen without permission from http://kwc.org/mythbusters/2005/11/e...amputatio.html Bottle Rocket Blast Off Myth: You can launch someone 30-40ft with a bottle-rocket-powered backpack. "At 60 psi they would need 28 bottles, which is more than the 15 used in the game show clip, so they decided to see how much more pressure they could put into the bottles. Using a bike pump they were able to get a the soda bottles up to 95 psi before their arms gave out. In order to find the failure point of the bottles they hooked up the pneumatic pump from Grant's "Deadblow" battle robot. The soda bottles exploded at 150 psi and the water cooler bottles exploded at 95 psi, so they decided that using soda bottles was better for the test even though they got much more lift out of the water cooler bottle." |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 6 Apr 2010 17:00:00 -0400, Stormin Mormon wrote:
At 150 PSI, they would be useful as expansion tanks for air compressors. Interesting idea! 1. Buy copper pipe 2. Drill ten holes 2 inches apart in the steel pipe for the threaded bolts 3. Tap the ten holes in the galvanized steel pipe for the threaded bolts 3. Drill an axial hole through the center of ten threaded bolts 4. Drill a hole through the center of ten soda caps for the threaded bolts 5. Screw the ten threaded bolts into the caps and then into the steel pipe 6. Cap one end of the steel pipe & place a chuck on the other end 7. Chuck the other end of the steel pipe onto your CO2 regulator hose 6. Screw ten 2 liter soda bottles onto the ten caps bolted to the pipe 7. Turn on the C02 gas and pressurize the twenty liters to 150psi 8. Remove the chuck 9. You now have 20 liters of 150psi portable C02! QUESTION: How many liters of gas does a typical automotive car tire take anyway? |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 6 Apr 2010 14:05:36 -0700 (PDT), DerbyDad03 wrote:
http://community.nbtsc.org/wiki/HomeMadeSoda http://kwc.org/mythbusters/2005/11/e...amputatio.html soda bottles exploded at 150 psi water cooler bottles exploded at 95 psi, That's interesing. Thanks for the reference! I wonder why Coke said ALL their PET bottles (from 20 oz to 2 liters) ar How can we find the "industry standard" for soda bottles? |
At what PSI does a plastic soda bottle explode? (home CO2carbonation)
On Apr 6, 5:01*pm, Elmo dcdraftwo...@Use-Author-Supplied-
Address.invalid wrote: On Tue, 6 Apr 2010 13:47:03 -0700 (PDT), mike wrote: If you don't believe your own gauges, why would you believe anonymous blather posted on the net? *If you think your gauges are messed up, try different gauges and see. My gauges are old. I don't want blather. I want facts. And references. I always search first, so, I already did my search and posted the results.. But maybe someone else out there is a better searcher than I am and can provide a reference. Surely I'm not the best there is. I did follow up on the suggestion to call Coke (even though I'm using Trader Joe's bottles). The Coke plastic PETE bottles (from 20 oz to 2 liters) are either tested to 150 psi or to 250 psi (I'm waiting for them to confirm by mail which ones). It would be nice to have more references though as I can't be the best Internest searchist out there.... Coke bottles used for water heater expansion tank Jimmie |
At what PSI does a plastic soda bottle explode? (home CO2carbonation)
On Apr 6, 5:16�pm, JIMMIE wrote:
On Apr 6, 5:01�pm, Elmo dcdraftwo...@Use-Author-Supplied- Address.invalid wrote: On Tue, 6 Apr 2010 13:47:03 -0700 (PDT), mike wrote: If you don't believe your own gauges, why would you believe anonymous blather posted on the net? �If you think your gauges are messed up, try different gauges and see. My gauges are old. I don't want blather. I want facts. And references. I always search first, so, I already did my search and posted the results. But maybe someone else out there is a better searcher than I am and can provide a reference. Surely I'm not the best there is. I did follow up on the suggestion to call Coke (even though I'm using Trader Joe's bottles). The Coke plastic PETE bottles (from 20 oz to 2 liters) are either tested to 150 psi or to 250 psi (I'm waiting for them to confirm by mail which ones). It would be nice to have more references though as I can't be the best Internest searchist out there.... Coke bottles used for water heater expansion tank Jimmie- Hide quoted text - - Show quoted text - I can assure you having seen a sprite truck lose 100 or so cases out the back of a tractor trailer, its roll up door must not of been secured and his inventory fell out the back some bottles expoloded and many leaked at the caps. explosion appeared to depend on agitating bottles. the police got upset when I called 911 I asked for the reps ID number and pointed out the truck left, not knowing of the mess it was leaving behind it, and all this debris were going to cause a accident....... telpehone cop said he woud send a car. wish I had a camera it would of been nice for americas funniest hme videos or u tube....... |
At what PSI does a plastic soda bottle fil a car tire?
I'd have to tape measure one, and calculate it out. I'd
figure a passenger car tire at maybe 3 to 5 liters of air space, at 35 PSI. Starting at 150, you'd get some where. When we used to be able to get freon tank conversions. I found that a 30 pound tank starting at 150 PSI would fill one car tire from zero to about 28 PSI. Easier to make a sort of manifold by drilling through the cap, and then fasten the cap to the maifold. Use close nipple, and a fitting in and out of the soda pop cap. Then, screw the bottle on. Eventually, you'd need a new cap or a new bottle. But they are cheap enough. Soda bottle as water pipe expansion tank sounds good. At least you can see if it's water logged. -- Christopher A. Young Learn more about Jesus www.lds.org .. "LM" wrote in message ... On Tue, 6 Apr 2010 17:00:00 -0400, Stormin Mormon wrote: At 150 PSI, they would be useful as expansion tanks for air compressors. Interesting idea! 1. Buy copper pipe 2. Drill ten holes 2 inches apart in the steel pipe for the threaded bolts 3. Tap the ten holes in the galvanized steel pipe for the threaded bolts 3. Drill an axial hole through the center of ten threaded bolts 4. Drill a hole through the center of ten soda caps for the threaded bolts 5. Screw the ten threaded bolts into the caps and then into the steel pipe 6. Cap one end of the steel pipe & place a chuck on the other end 7. Chuck the other end of the steel pipe onto your CO2 regulator hose 6. Screw ten 2 liter soda bottles onto the ten caps bolted to the pipe 7. Turn on the C02 gas and pressurize the twenty liters to 150psi 8. Remove the chuck 9. You now have 20 liters of 150psi portable C02! QUESTION: How many liters of gas does a typical automotive car tire take anyway? |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
"Elmo" wrote in message ... Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi. http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. Not a news group but you may find the answers you seek he http://www.truetex.com/carbonation.htm |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
wrote in message
... On Tue, 6 Apr 2010 20:34:49 +0000 (UTC), Elmo wrote: Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi. http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. I have a compressed air horn on my bicycle that uses a soda bottle as the presssure tank. It has warnings all over it not to exceed 70 PSI, and that is for a soda bottle that has had an additional safety sleeve on it to prevent flying shards. The horn proly doesn't need more than 20-30 psi -- I'da thought a hose straight to your ass would produce that easily, on command. I thought you were a Greenie, anyway.... -- EA The plastic gets brittle when cold, so that would be an additional factor to consider. I cannot imagine why you would want anywhere near 150 PSI for soda. |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 06 Apr 2010 19:00:00 -0400, wrote:
The horn needs 70 PSI. When it gets down to 20, it's not very loud. How do you pressurize it? Do you use an air pump or C02 tank? |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 6 Apr 2010 20:34:49 +0000 (UTC), Elmo wrote:
Anyone know at what PSI a typical plastic soda bottle explodes? Thank God for young boys. Empirical data is only a video away! "A typical two-liter soda bottle can generally reach the pressure of 100 psi (690 kPa) safely" http://en.wikipedia.org/wiki/Water_rocket How to make a soda bottle explode (slow motion): http://www.metacafe.com/watch/991622...eps_on_how_to/ Blowing up 2 liter soda bottle (skip to 5:00 min for the explosion): http://www.youtube.com/watch?v=uuXhze-xyiw Coke Bottle PSI Bombs http://www.youtube.com/watch?v=w5rugiELG5Q Soda bottle bomb http://www.youtube.com/watch?v=KyGsO5S_DhU Launching Pressurized Bottle Rockets @100 psi http://www.youtube.com/watch?v=TUadbuuFktM Exploding bottles with Dry Ice: http://www.youtube.com/watch?v=TlqZUyXjKZo How to Make a LOUD Water Bottle Bomb http://www.youtube.com/watch?v=E3j9EFhKvAw |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
In ,
Elmo typed: Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi. http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. Good grief: If a bottle broke open it because it froze, that had to do with the expansion of the contents, not the carbonation. You can do the same thing with plain water for pete's sake. Many people hoodwinked here - it had nothing to do with the carbonation and knowing the exploding point of the bottles isn't much use when it's pressure from freezing and expanding contents inside the plastic, and even less to do with home carbonation. When liquid cools, it expands - which can burst bottles, metal pipes, whatever. |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
In article , Elmo wrote:
On Tue, 6 Apr 2010 13:43:42 -0700, LM wrote: Glass bottles explode from 70 to 100psi. Soda bottles can go way over 200 psi. Call Coca Cola's information line 800-438-2653 I'm on the line with them right now! They are very helpful! They do the research for you, while you wait. So far, the woman says the maximum psi the package can withstand is based on the volume of carbonation and type of fluid it contains. Digging more, she says every one of their carbonated PET containers from 20 ounces to 2 liters can withstand the industry standard 150 psi. In addition, some Coke products have PET packaging that can withstand up to 250 psi (it all depends on the type of product in the package). They're gonna send me via email WHICH bottles can withstand 250 psi as the lady said she had to sent that over to the Research Department. Of course, I'm using Trader Joe's (very thick) plastic bottles so I'm not sure how much of this applies; but, maybe that explains why I had no explosions at 150psi yesterday. It's great to learn from everyone here. If you have any information about when a soda bottle explodes, please post the reference here! I would advise to have your pressurized bottle located in a location where an explosion is tolerable. I would not bet my life or the house on the pressure to be used to not exceed what it should not exceed, or the bottle to not have a flaw or damage (possibly incurred after its manufacture) that causes it to fail to withstand what it's supposed to withstand. - Don Klipstein ) |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
In article , LM wrote:
On Tue, 6 Apr 2010 17:00:00 -0400, Stormin Mormon wrote: At 150 PSI, they would be useful as expansion tanks for air compressors. Interesting idea! 1. Buy copper pipe 2. Drill ten holes 2 inches apart in the steel pipe for the threaded bolts 3. Tap the ten holes in the galvanized steel pipe for the threaded bolts 3. Drill an axial hole through the center of ten threaded bolts 4. Drill a hole through the center of ten soda caps for the threaded bolts 5. Screw the ten threaded bolts into the caps and then into the steel pipe 6. Cap one end of the steel pipe & place a chuck on the other end 7. Chuck the other end of the steel pipe onto your CO2 regulator hose 6. Screw ten 2 liter soda bottles onto the ten caps bolted to the pipe 7. Turn on the C02 gas and pressurize the twenty liters to 150psi 8. Remove the chuck 9. You now have 20 liters of 150psi portable C02! QUESTION: How many liters of gas does a typical automotive car tire take anyway? Eyeball-estimate - roughly a torus that on largish side has a tubular cross section whose diameter is 20 cm, and with a 50 cm diameter of the tube's "centerline". Volume of such a "largish tire" would in cubic centimeters be 20 squared times pi/4 tomes 50 times pi, or 49,348 cubic centimeters. Divide by 1,000 to get liters - about 49. That does sound to me large for a tire, maybe about right for a tire for a large SUV. Also, most car and SUV tires are not inflated past 36 PSI. 50 liters at 36 PSI, if compressed to 150 PSI, takes up 12 liters. One more thing - CO2 has slightly different dynamics in compressibility than air does, due to its lower specific heat ratio. CO2 at 32 PSI in a 14 PSI atmosphere has the same "stiffness" as air would have at about 28.5 PSI. The vehicle's ride and "road feel" and how much the tires get mashed by bumps and potholes would be as if the tires were underinflated about 11%. The specific heat ratio of a gas alters its compressibility when it is compressed or expanded quickly enough to have its temperature respond to the change in pressure rather than being held by heat conduction to the ambient temperature. However, the wear rate and wear pattern would be determined more by the pressure alone. Compensating with a higher pressure would concentrate the wear towards the "centerline" of the tread. Also, pressure alone contributes to much of the stress that parts of the tire must face and the shape of the tire and its contact patch when it is supporting a load. This affects its traction on wet roadways at higher speeds. These factors can severely limit use of higher pressure just because the gas is more compressible in a "dynamic sense". - Don Klipstein ) |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
In ,
JIMMIE wrote: On Apr 6, 5:01*pm, Elmo dcdraftwo...@Use-Author-Supplied- Address.invalid wrote: On Tue, 6 Apr 2010 13:47:03 -0700 (PDT), mike wrote: If you don't believe your own gauges, why would you believe anonymous blather posted on the net? *If you think your gauges are messed up, try different gauges and see. My gauges are old. I don't want blather. I want facts. And references. I always search first, so, I already did my search and posted the results. But maybe someone else out there is a better searcher than I am and can provide a reference. Surely I'm not the best there is. I did follow up on the suggestion to call Coke (even though I'm using Trader Joe's bottles). The Coke plastic PETE bottles (from 20 oz to 2 liters) are either tested to 150 psi or to 250 psi (I'm waiting for them to confirm by mail which ones). It would be nice to have more references though as I can't be the best Internest searchist out there.... Coke bottles used for water heater expansion tank I would be leary about the ability to withstand 150 or 120 PSI being valid at the highest temperature that can be encountered in this application. I have had experience with boiling water causing PET soda bottles to soften and go out of shape without any significant pressure at all. - Don Klipstein ) |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
In ,
DerbyDad03 wrote: SNIP previously quoted material Stolen without permission from http://kwc.org/mythbusters/2005/11/ episode_42_steel_toe_amputatio.html Bottle Rocket Blast Off Myth: You can launch someone 30-40ft with a bottle-rocket-powered backpack. "At 60 psi they would need 28 bottles, which is more than the 15 used in the game show clip, so they decided to see how much more pressure they could put into the bottles. Using a bike pump they were able to get a the soda bottles up to 95 psi before their arms gave out. SNIP from here There are many bike tires rated to take 105, even 110 PSI. A decent floor pump can achieve 110-120 PSI in the hands of most serious cyclists and bike mechanics. Frame-fit pumps for "road bikes" in my experience can achieve 130-150 PSI. Back when I worked a messenger job, I often pumped my rear tire to 130-140 PSI so that I could carry heavier loads (80-150 pounds) on a rear rack that I built for the purpose. I made more money that way, and the motor vehicle messengers in my company were happier to get less business in the areas where parking was more impossible. Experience taught me which tires were able to take such abuse, and which ones were not. (And an extra-loud *KABOOM* would sometimes occur at a very inconvenient time, such as halfway through a 2 mile delivery run, or while my bike was parked in my home at 5 AM. Some messengers keep their bikes in their bedrooms, although I did not combine that with a tire rated 110-115 PSI and inflated to 130-140 PSI.) - Don Klipstein ) |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
In , J. Zappacosta said in part:
How to make a soda bottle explode (slow motion): http://www.metacafe.com/watch/991622...eps_on_how_to/ Why is it so popularly mentioned on the web how to blow up soda bottles with caustic chemicals? (This is far from the first time I have heard on the web and in Usenet how to do that with caustic chemicals of one sort or another.) If someone has to make a big bang and maybe attract attention of the police, would it not be more wise to use something not so caustic, such as vinegar and chalk, or better still water and a bunch of Alka-Seltzer tablets, or a long hose and an air compressor or a long hose and a bicycle pump made to achieve higher pressures used in road bikes and track bikes? Get someone good and strong to operate the bike pump if much more than 150 PSI is needed to get the cars coming in with red and blue flashing lights? - Don Klipstein ) |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
"Don Klipstein" wrote in message
stuff snipped I would be leery about the ability to withstand 150 or 120 PSI being valid at the highest temperature that can be encountered in this application. I have had experience with boiling water causing PET soda bottles to soften and go out of shape without any significant pressure at all. Strongly agree! My dad was a safety engineer and often testified at trials as an expert witness. Soda bottles have a rich history of litigation. If they are dropped just right in a store, for example, the cap can blow off with enough force to put out an eye, and it's happened many times, it's not just a freak one-off occurrence. Injuries have lessened with plastic v. glass bottles, but they have not vanished entirely. Much engineering has gone into designing safer bottles (the odd star-shape of the bottom is designed to "pop" visibly when dropped and provide some visual warning that the bottle is overpressured. The screw threads on the cap are interrupted for the same reason). Still, there are soda bottle accidents every year in the US. Many are caused by shelf stockers insisting on filling high shelves beyond capacity, making a floor drop from considerable height all but certain. Overpressurizing them for fun with kids around seems to be a pretty silly idea. But they do make passable silencers for pistols if attached correctly. Search for "soda bottle eye injury" on Google to find many tales like this: "We have come across six patients of ocular injuries due to CBB explosions during a period of nearly two years. All the cases had unila*teral involvement, right eye in four cases and left eye in two cases. All of these patients had severe visual loss. Initial visual acuity, after the injury ranged from loss of perception of light to finger counting at two meters distance. In one case the eye was badly mutilated and had to be enucleated. In five cases, the injury was caused by glass splinters, while in one case it was due to the cap of the bottle. The injury due to the bottle cap was interesting in that it left a clear impression of its crenated edge on the skin of the lids and the cornea which gives some indication of the force of the impact. In four cases the CBB exploded without provocation." Source: http://www.ijo.in/article.asp?issn=0... ;aulast=Gupta -- Bobby G. |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Wed, 7 Apr 2010 00:52:17 +0000 (UTC), Don Klipstein wrote:
Also, most car and SUV tires are not inflated past 36 PSI. 50 liters at 36 PSI, if compressed to 150 PSI, takes up 12 liters. Then all we need are 6 two liter Coca Cola soda bottles! We could just as easily fill them up with compressed air as with C02. Sounds interesting. I'm waiting for the you-tube video of the manifold! |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 6 Apr 2010 22:35:12 -0400, Robert Green wrote:
the odd star-shape of the bottom is designed to "pop" visibly when dropped and provide some visual warning that the bottle is overpressured. The screw threads on the cap are interrupted for the same reason. In four cases the CBB exploded without provocation." All very interesting especially the interrupted screw threads! Never even noticed that until I just now took a look. I suspect it makes the (over)pressurized air blow by the gaps, right? |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On 4/6/2010 3:34 PM, Elmo wrote:
Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi. http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. They do blow up and with considerable force. My neighbor's friend works in the bottled gas business. His company makes dry ice. He gets it for nothing and uses it for keeping his beer cold when he comes out here for the weekend. He likes to make loud noises by dropping dry ice into plastic pop bottles then sealing them up. Better than the big firecrackers we called blockbusters when I was a kid. You wouldn't want one of those bottles next to your crotch if it decided to go boom. SM, don't try to impress the kids at church. Someone will get hurt. LdB |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
Elmo wrote:
Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi. http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. Lots of experience at rec.crafts.brewing. If you are just carbonating drinks, there is no reason to go over 50 psi unless you are in an extreme hurry. Why bother? |
At what PSI does a plastic soda bottle explode? (home CO2carbonation)
On Apr 6, 9:34�pm, Elmo dcdraftwo...@Use-Author-Supplied-
Address.invalid wrote: Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi.http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. If you are pressure testing bottles, on NO account use air or gas, the bottle will explode violently at some point. Use water, and wrap the bottle in a cloth. The bottle will just crack when it fails, much safer. |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
mike wrote:
On Apr 6, 1:34 pm, Elmo dcdraftwo...@Use-Author-Supplied- Address.invalid wrote: Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi.http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. If you don't believe your own gauges, why would you believe anonymous blather posted on the net? If you think your gauges are messed up, try different gauges and see. As long as you are only trying to carbonate something and not force an explosion, wouldn't only a few PSI be adequate? Mysterious Traveler |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
In article , I, Don Klipstein wrote:
In , J. Zappacosta said in part: How to make a soda bottle explode (slow motion): http://www.metacafe.com/watch/991622...eps_on_how_to/ Why is it so popularly mentioned on the web how to blow up soda bottles with caustic chemicals? (This is far from the first time I have heard on the web and in Usenet how to do that with caustic chemicals of one sort or another.) If someone has to make a big bang and maybe attract attention of the police, would it not be more wise to use something not so caustic, such as vinegar and chalk, or better still water and a bunch of Alka-Seltzer tablets, or a long hose and an air compressor or a long hose and a bicycle pump made to achieve higher pressures used in road bikes and track bikes? Get someone good and strong to operate the bike pump if much more than 150 PSI is needed to get the cars coming in with red and blue flashing lights? Maybe I was a bit premature - other links in the article that I responded to did show soda bottles being blown up by an air compressor and apparently also by a bike pump. - Don Klipstein ) |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Wed, 07 Apr 2010 15:54:20 -0500, Mysterious Traveler wrote:
As long as you are only trying to carbonate something and not force an explosion, wouldn't only a few PSI be adequate? Yes. My regulator is faulty. I thought it was the gauges but when I put a second set of gauges on, I realized the regulator isn't working. It's always at something over 150 psi. It's not a big deal, as Coke confirmed by phone all their plastic 20oz to 2 liter PETE bottles are safety tested at the "industry standard" 150 psi and some are even tested to 250 psi. I've successfully carbonated, so far, water, grape juice, pinot noir wine, lemonade, and orange juice. The attempt at carbonated milk and carbonated yogurt weren't the most stellar of achievements though; neither was the ice-cream carbonation nor the strawberry fruit carbonation. But, I keep learning, e.g., here they actually test the burst pressure of a 2l coke bottle (and show a slo-mo video with the pressure counter in the corner): http://home.people.net.au/~aircommand/procedures.htm - Maximum Operating Pressure is called MOP (which is what you do when you reach it) - Test 1: 2 liter coke bottle burst at 190 psi (the bottle actually stretches lengthwise in the slow motion video) - Test 2: 1.25 liter coke bottle burst at 185 psi (in slow motion you see the cones on the bottom stretch out to almost cylindrical before bursting) - Test 3: 1.5 liter coke bottle burst at 175 psi (always the bottom or sides give out before the cap does) - Test 4: 1.25 liter coke bottle with duct tape burst at 195 psi (for the first time, the cap sprunk a leak but the failure mode was the package) http://www.aquariumadvice.com/forums...tle-62325.html - A soda can is able to withstand over 100 PSI - A 6.5-ounce glass soda bottle can withstand 225 PSI - A 16-ounce glass soda bottle can withstand 175 PSI - A PET soda bottle can withstand 150 PSI--the industry standard |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Wed, 7 Apr 2010 22:48:15 +0000 (UTC), Don Klipstein wrote:
show soda bottles being blown up by an air compressor and apparently also by a bike pump. Interestingly, the only time the cap failed was when they heat treated the coke bottle beforehand, as shown in in these tests: http://home.people.net.au/~aircommand/procedures.htm Interestingly, in general, the larger the bottle, the lower the burst pressure. For example, while the standard 2 liter coke bottle with label burst at 168 psi, the standard 1.25 liter coke bottle burst at 185 psi. Also interesting was the more gas (less liquid), the higher the burst pressure; for example, that same 1.25 liter coke bottle burst at 190 psi when it contained significant air. In their last reported test, a 2 liter PET bottle failed at a lower psi than you'd expect (150 psi) after simulated use (held at 130 psi for 3 minutes). This test might indicate plastique fatigue occurs with repeated high pressurization. So, I'd say Coke's report that all their bottles can handle 150 psi seems reasonable as the MOP (maximum operating pressure) for PETE bottles. BTW, those numbers are all way higher than the "guesstimates" made he http://www.instructables.com/answers...bottle2l_hold/ |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Thu, 8 Apr 2010 06:12:08 +0000 (UTC), Elmo wrote:
So, I'd say Coke's report that all their bottles can handle 150 psi seems reasonable as the MOP (maximum operating pressure) for PETE bottles. Despite both Coke's statements and independent tests showing coke bottles exploding well almost at 200 psi, the mythbusters seem to intimate they explode at the much lower 150 psi pressure. http://en.wikipedia.org/wiki/MythBus...2005_season%29 So, I'm confused. |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Wed, 7 Apr 2010 12:25:50 -0700 (PDT), harry wrote:
If you are pressure testing bottles, on NO account use air or gas, the bottle will explode violently at some point. This reference backs up the observation that the smaller bottles rupture at higher pressures ... http://answers.yahoo.com/question/in...9125950AAdiFbU 5 atmospheres is about 73.5 psi. I know that 16 ounce plastic coke bottles are rated up to 175psi(11.9 atm). 2L bottles hold somewhat less. A coke can holds about 100 psi(6.8atm). I don't know the rating of champagne bottles but that the thick glass can withstand a marginally greater pressure than the thin plastic. However the plastic will begin to stretch (audiblly) as it nears failure and the glass will just shatter and send shards scattering. I prefer the plastic. Source(s): The Coca Cola people told me... and I've also test popped a few first hand as a demonstration as to ability of expanding gas to do work using liquid nitrogen source in the capped bottles. The coca cola contact is : Gina M. L'Heureux The Coca-Cola Company Industry and Consumer Affairs This answer, way too conservative, at least shows a mathematical process: http://answers.yahoo.com/question/in...4051635AAoQDT9 Best Answer - Chosen by Voters You would have to do a bit of research: You need to know the dimensions of the bottle: Diameter and wall thickness. You need to know the plastic it is made from and the corresponding tensile strength (yield) of the material. Then you can update these calculations: Assuming that the diameter of the bottle D=5 inches, wall thickness t = 0.025 inches, and the plastic has a yield strength of 5000 psi: The hoop stress in the wall of the bottle = PD/2t The longitudinal stress in the wall = PD/4t For this pressure vessel situation, those 2 stresses are orthogonal and and the principal stresses s1 and s2, the von mises failure theory suggests that the stress levels are acceptable if: sqrt(s1^2 - s1*s2 +s2^2) yield, so: sqrt((PD/4t)^2 - (PD/4t)*(PD/2t) + (PD/2t)^2) 5000 expanding and collecting the LHS = 0.433 P D / t 5000 Filling in the example numbers, P 57.7 psi And ofcourse with anything safety related, a safety factor should be applied in proportion to the risk severity. In this case an exploding bottle probably would not cause death, but could cause serious injury - A safety factor of 5 is likely appropriate... thus, assuming the example numbers are about right, you should not pressurize to more than 57.7/5 = 11.5 psi (this is delta compared to 1 ATM) But, of course, these guys are the most reliable I can find: http://home.people.net.au/~aircommand/procedures.htm |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
When the kiddies were into bottle rockets (water and air type, not the
pyrotechnic type) they were running 2 liters up to 160 psi regularly. After a few trips it made a Very Loud Noise. But until then it held, and the landings probably didn't aid structural integrity any (dents, creases, scratches.) Then again, it may have been simple fatigue. Your home carbonation system can benefit from the science that aids the engineering of commercial carbonation systems - chill the liquid - it dissolves gas better at lower pressures. Since you can keep the pressures lower, so you are not stressing things as much. Wasting product on the floor is messy and irritating, not to mention loud and attractive to ants, etc. -- Cats, coffee, chocolate...vices to live by |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
Elmo wrote in
: On Thu, 8 Apr 2010 06:12:08 +0000 (UTC), Elmo wrote: So, I'd say Coke's report that all their bottles can handle 150 psi seems reasonable as the MOP (maximum operating pressure) for PETE bottles. Despite both Coke's statements and independent tests showing coke bottles exploding well almost at 200 psi, the mythbusters seem to intimate they explode at the much lower 150 psi pressure. http://en.wikipedia.org/wiki/MythBus...2005_season%29 So, I'm confused. Explosion occurs at 150psi. I think your confusion comes from some poor wording at that Wiki site. This quote: "The Build Team also found that water cooler jugs, while able to launch higher at the standard air/water ratio for water bottle rockets, were weaker than standard soda bottles (which are designed to hold carbonated liquids), failing at around 60 psi (413 kPa) less than the soda bottles (90psi (600kPa) as opposed to 150psi (1000kPa))." might read more clearly as: "The Build Team also found that water cooler jugs were able to launch higher at the standard air/water ratio for water bottle rockets. However, the jugs were weaker than standard soda bottles, failing at around 90 psi (600 kPa), much less than the soda bottles, which fail at 150psi (1000kPa)." The intermixing of English and Metric also adds to the confusion of the Wiki page's wording. -- Tegger |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Tue, 6 Apr 2010 20:34:49 +0000 (UTC), Elmo
wrote: Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi. http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. Particularly on topic for me because I have an Air Horn on my bicycle: http://www.amazon.com/Delta-Airzound.../dp/B000ACAMJC It uses what appears to be a slightly thicker version of a soda bottle. It is a very effective horn, in fact, a bit too loud. It sounds like a Hemi on helium but does get through those jogger's headphones. Anyway, the bottle is usually fastened right below the crossbar, which is right below my, well, nuts. We're told to fill it to 100 psi. If there is one thing I don't want, it's that bottle exploding down there. Note the cost of this item. The price "reduction" drops it below the free shipping ($25) level so it ends up costing more. Excuse me but I'll just pay full price and get it shipped for free. |
At what PSI does a plastic soda bottle explode? (home CO2carbonation)
On Apr 9, 10:45*am, dgk wrote:
On Tue, 6 Apr 2010 20:34:49 +0000 (UTC), Elmo wrote: Anyone know at what PSI a typical plastic soda bottle explodes? I've built a home carbonation system. The gauges say I've put in 150PSI of C02 into the Trader Joe's (admittedly thick) carbonated water bottles. Nothing happened (with respect to explosions). Yet, as I dig on the web, I find that plastic soda bottles are supposed to explode at 120 to 150psi. http://community.nbtsc.org/wiki/HomeMadeSoda Obviously I need more data. Do you have data points showing when soda bottles explode? PS: If there's a soda or carbon dioxide related newsgroup for home carbonation, please let me know. Particularly on topic for me because I have an Air Horn on my bicycle: http://www.amazon.com/Delta-Airzound.../dp/B000ACAMJC It uses what appears to be a slightly thicker version of a soda bottle. It is a very effective horn, in fact, a bit too loud. It sounds like a Hemi on helium but does get through those jogger's headphones. Anyway, the bottle is usually fastened right below the crossbar, which is right below my, well, nuts. We're told to fill it to 100 psi. If there is one thing I don't want, it's that bottle exploding down there. Note the cost of this item. The price "reduction" drops it below the free shipping ($25) level so it ends up costing more. Excuse me but I'll just pay full price and get it shipped for free.- Hide quoted text - - Show quoted text - Considering all the above .................. were these tests conducted on brand new (previously unusd) or 'used' ad emptied bottles? Used bottles having been previously stressed by the 'normal' pressure of soft drinks. |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Wed, 7 Apr 2010 00:52:17 +0000 (UTC), Don Klipstein wrote:
That does sound to me large for a tire, maybe about right for a tire for a large SUV. Also, most car and SUV tires are not inflated past 36 PSI. 50 liters at 36 PSI, if compressed to 150 PSI, takes up 12 liters. What volume of gas is contained in an automotive ti http://www.madsci.org/posts/archives...5256.Ch.r.html Those guys came up with 10 liters at 30psi, given: * Inside diameter of rubber tire 15" = ~40 cm = 4 dm * Outside diameter of rubber tire 21" = ~50 cm = 5 dm * Width of steel wheel 6" = ~15 cm = 1.5 dm * Pressure inside the rubber tire 30 psi * Temperature 25° C The volume inside the tire is the volume difference between two cylinders, one representing the entire wheel/tire assembly and the other representing just the wheel. The volume of a cylinder is V = p × diameter × height where diameter is twice the radius. Note: For your particular tire and wheel assembly, you can use the Tire Diameter and Circumference Calculator at: http://www.csgnetwork.com/tiresizescalc.html They used the numbers below: For just the steel wheel, the volume p × (4 dm ¸ 2)2 × 1.5 dm = 19 cubic decimeters (i.e., 19 liters). For just the rubber tire assembly, the total volume p × (5 dm ¸ 2)2 × 1.5 dm = 29 cubic decimeters (i.e., 29 liters). The volume difference is just 10 liters (which means that the air in the tire will mass about 26 grams). Another volume calculation is he http://www.irday.com/html/Automotive...0413/9827.html Those guys came up with 30 liters for an average truck tire. This volume calculation puts a car tire at 1 to 2 cubic feet of air: http://mgaguru.com/mgtech/tools/ar104.htm BTW, what happens to the mass if we use a different gas than air, like carbon dioxide? |
At what PSI does a plastic soda bottle explode? (home CO2 carbonation)
On Fri, 9 Apr 2010 08:34:56 -0700, LM wrote:
Note: For your particular tire and wheel assembly, you can use the Tire Diameter and Circumference Calculator at: http://www.csgnetwork.com/tiresizescalc.html This tire volume calculator works better: http://www.club80-90syncro.co.uk/Syn...calculator.htm |
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