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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Brake Cleaner
From the Logan Lathe List: A scary story about brake cleaner
http://www.brewracingframes.com/id75.htm |
#2
Posted to rec.crafts.metalworking
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Brake Cleaner
On Dec 21, 4:45*pm, rangerssuck wrote:
From the Logan Lathe List: A scary story about brake cleaner http://www.brewracingframes.com/id75.htm Found that out when I was working as a mechanic in a shop heated by an old waste-oil furnace- the bit of brake-cleaner fumes floating around got sucked into the machine, and I have to suppose either some of the combustion products were making it into the room, or the hot metal that warmed the air was hot enough to decompose the stuff. Burned R12 can turn into phosgene, as well. Don't know about the hazards of the newer stuff, it lacks chlorine (I think) and I think that's the main bit that makes it 'interesting'. The uses of brake cleaner or R12 for producing these chemicals on purpose is left as an exercise for the student... Dave |
#3
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Brake Cleaner
On Mon, 21 Dec 2009 13:53:45 -0800 (PST), Dave__67
wrote: On Dec 21, 4:45*pm, rangerssuck wrote: From the Logan Lathe List: A scary story about brake cleaner http://www.brewracingframes.com/id75.htm Found that out when I was working as a mechanic in a shop heated by an old waste-oil furnace- the bit of brake-cleaner fumes floating around got sucked into the machine, and I have to suppose either some of the combustion products were making it into the room, or the hot metal that warmed the air was hot enough to decompose the stuff. Burned R12 can turn into phosgene, as well. Don't know about the hazards of the newer stuff, it lacks chlorine (I think) and I think that's the main bit that makes it 'interesting'. The uses of brake cleaner or R12 for producing these chemicals on purpose is left as an exercise for the student... Dave Indeed...a not so secret substance as part of a number of formulas for mayhem among the "black community" (race not involved) Gunner "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#4
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Brake Cleaner
On Mon, 21 Dec 2009 13:45:11 -0800 (PST), rangerssuck
wrote: From the Logan Lathe List: A scary story about brake cleaner http://www.brewracingframes.com/id75.htm R12 refrigerent does exactly the same thing if heated (as do all "freons" |
#5
Posted to rec.crafts.metalworking
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Brake Cleaner
Ouch, that sounded painful. And, it's a good warning.
-- Christopher A. Young Learn more about Jesus www.lds.org .. "Dave__67" wrote in message ... On Dec 21, 4:45 pm, rangerssuck wrote: From the Logan Lathe List: A scary story about brake cleaner http://www.brewracingframes.com/id75.htm Found that out when I was working as a mechanic in a shop heated by an old waste-oil furnace- the bit of brake-cleaner fumes floating around got sucked into the machine, and I have to suppose either some of the combustion products were making it into the room, or the hot metal that warmed the air was hot enough to decompose the stuff. Burned R12 can turn into phosgene, as well. Don't know about the hazards of the newer stuff, it lacks chlorine (I think) and I think that's the main bit that makes it 'interesting'. The uses of brake cleaner or R12 for producing these chemicals on purpose is left as an exercise for the student... Dave |
#6
Posted to rec.crafts.metalworking
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Brake Cleaner
"Stormin Mormon" fired this volley in
: Burned R12 can turn into phosgene, as well. Not _merely_ burning it, Stormy. As is also the case with carbon tetrachloride, contact with hot iron-bearing materials catalyses the material into phosgene and a couple of other not-so-nice-to-breathe combustion by-products (like free chlorine gas). Simply introducing it into a flame decomposes the material, usually liberating chlorine and fluorine as the offending gasses. LLoyd |
#7
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Brake Cleaner
On Tue, 22 Dec 2009 08:40:08 -0600, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote: "Stormin Mormon" fired this volley in : Burned R12 can turn into phosgene, as well. Not _merely_ burning it, Stormy. As is also the case with carbon tetrachloride, contact with hot iron-bearing materials catalyses the material into phosgene and a couple of other not-so-nice-to-breathe combustion by-products (like free chlorine gas). Simply introducing it into a flame decomposes the material, usually liberating chlorine and fluorine as the offending gasses. LLoyd In addition, chlorinated compounds used to remove oils from metals may also react under the UV created during arc (including TIG and MIG) welding to produce phosgene. |
#8
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Brake Cleaner
rangerssuck wrote:
From the Logan Lathe List: A scary story about brake cleaner http://www.brewracingframes.com/id75.htm First time I got around to reading it. It has been posted elsewhere. I've used Brakekleen a lot of times for cleaning and I could see me, prior to your post, using it to clean something I was going to silverbraze. Now I got to read the lable on electromotive cleaner before I buy another can. Wes -- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller |
#9
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Brake Cleaner
http://www.brewracingframes.com/id75.htm
I don't know what made this guy so sick, but it wasn't the phosgene exposure. |
#10
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Brake Cleaner
In article , Richard J Kinch wrote:
http://www.brewracingframes.com/id75.htm I don't know what made this guy so sick, but it wasn't the phosgene exposure. What, you don't think phosgene exposure is a problem? |
#11
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Brake Cleaner
On Mon, 28 Dec 2009 21:32:33 -0600, Richard J Kinch
wrote: http://www.brewracingframes.com/id75.htm I don't know what made this guy so sick, but it wasn't the phosgene exposure. I'd tend to agree with you. The immediate symptoms of Phosgene inhalation are burning throat and tightness of breath. The bowel and urine symptoms seem to be non-typical - perhaps due to some bad chinese for lunch??? The exposure from a couple of drops in a well-ventilated area are unlikely to have caused this severe reaction. I'm thinking more likely cadmium or zinc poisoning. His symptoms more closely resemble heavy metal poisoning - which causes the same respiratory distress response becaus it also causes hydrochloric acid burns to the respiratory system, due to zinc chloride. Zinc and other heavy metal poisoning are cumulative - if you have EVER suffered a mild case you are in high danger of a serious episode with any further exposure. |
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