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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Caustic Soda Vs One Shot Sulphuric Acid
I have recently seen the sulphuric acid to clear blocked drains.
Having googled around, it seems I should not mix the 2. I am trying the caustic soda today followed by boiling water and detergent. If that fails, how long should I wait before i move on to the acid? |
#2
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Caustic Soda Vs One Shot Sulphuric Acid
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#3
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Caustic Soda Vs One Shot Sulphuric Acid
wrote in message ups.com... I have recently seen the sulphuric acid to clear blocked drains. Having googled around, it seems I should not mix the 2. I am trying the caustic soda today followed by boiling water and detergent. If that fails, how long should I wait before i move on to the acid? In my experience caustic soda is good for fatty deposits - kitchens etc, and sulphuric acid is good for hair balls - baths & showers. Beware that sulphuric acid will stain baths and shower trays so be very careful how you pour it. AWEM |
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Caustic Soda Vs One Shot Sulphuric Acid
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#5
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Caustic Soda Vs One Shot Sulphuric Acid
lavenders19 wrote:
I have recently seen the sulphuric acid to clear blocked drains. Having googled around, it seems I should not mix the 2. I am trying the caustic soda today followed by boiling water and detergent. When you mix solid caustic soda and water, the mixture gets hot. It can get very hot, and boil. When it boils, it can and will spit hot caustic soda granules/boiling caustic solution all over the place. If you pour boiling water onto solid caustic soda, the temperature of the water will probably immediately go up a bit, to above boiling, and it can and will *violently* spit boiling water/steam/caustic solution/granules all over the place. The above is why it is recommended to mix the caustic into cold water, carefully, to avoid being showered with caustic. Read the side of the tub for more info. You should avoid being showered with hot (or cold) caustic, use eye/skin protection, and keep some vinegar and a pail or two of cold water handy to wash in if there's an ewmergency. If anyone tells you that the above isn't true, then they're fools. If that fails, how long should I wait before i move on to the acid? Make sure there's no caustic in the system before using acid, or it will cause a violent reaction. Flush it with water first. Quite frankly, I think you'd be better off dismantling the system to do a proper job. Good Luck and take care. |
#6
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Caustic Soda Vs One Shot Sulphuric Acid
"Chris Bacon" wrote When you mix solid caustic soda and water, the mixture gets hot. It can get very hot, and boil. When it boils, it can and will spit hot caustic soda granules/boiling caustic solution all over the place. If you pour boiling water onto solid caustic soda, the temperature of the water will probably immediately go up a bit, to above boiling, and it can and will *violently* spit boiling water/steam/caustic solution/granules all over the place. The above is why it is recommended to mix the caustic into cold water, carefully, to avoid being showered with caustic. Read the side of the tub for more info. snip Similarly, conc. sulphuric gets very hot when diluted. If attempting to dilute sulphuric acid *always* add acid to water, *never* the other way round. That way, if it boils and spits you are more likely to get splashed with dilute acid. Eye protection etc. is a must. Steve S |
#7
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Caustic Soda Vs One Shot Sulphuric Acid
Steve S wrote:
snip Similarly, conc. sulphuric gets very hot when diluted. If attempting to dilute sulphuric acid *always* add acid to water, *never* the other way round. That way, if it boils and spits you are more likely to get splashed with dilute acid. Eye protection etc. is a must. Hmm but do you reckon he's going to able to buy sulphuric acid stronger than 1M anywhere? Seems unlikely to me. It's difficult enough finding hydrochloric acid for pavement cleaning. |
#8
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Caustic Soda Vs One Shot Sulphuric Acid
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#9
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Caustic Soda Vs One Shot Sulphuric Acid
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#10
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Caustic Soda Vs One Shot Sulphuric Acid
When you mix solid caustic soda and water, the mixture gets hot. It can get very hot, and boil. When it boils, it can and will spit hot caustic soda granules/boiling caustic solution all over the place. I demonstrated this to one of the kids over Xmas. One part caustic, one part water, and stir. I predicted it would melt the yoghourt pot, but it didn't. Didn't boil, didn't spit. Hand hot I'd say. Why people bother with acid or alkali drain unblockers is a mystery to me. Most blockage respond to the smaller diameter garden hose (with a flow of water if necessary) |
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Caustic Soda Vs One Shot Sulphuric Acid
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#12
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Caustic Soda Vs One Shot Sulphuric Acid
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#13
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Caustic Soda Vs One Shot Sulphuric Acid
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#14
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Caustic Soda Vs One Shot Sulphuric Acid
Nigel Molesworth wrote:
On 31 Dec 2005 04:34:14 -0800, wrote: If that fails, how long should I wait before i move on to the acid? Personally I would pour the acid in now, then run like hell! I'm sure the resulting explosion will unblock the drains, and it might bring down the rest of your ceiling as well, which is a GOOD thing. ROFL!! |
#15
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Caustic Soda Vs One Shot Sulphuric Acid
On Sat, 31 Dec 2005 13:35:41 +0000, Steve Firth wrote:
Steve S wrote: snip Similarly, conc. sulphuric gets very hot when diluted. If attempting to dilute sulphuric acid *always* add acid to water, *never* the other way round. That way, if it boils and spits you are more likely to get splashed with dilute acid. Eye protection etc. is a must. Hmm but do you reckon he's going to able to buy sulphuric acid stronger than 1M anywhere? Seems unlikely to me. It's difficult enough finding hydrochloric acid for pavement cleaning. HCl at 10% is readily available from s/fix under "Patio Cleaner" I use it for general descaling. It's quite as strong as brickwork cleaner (travis perkins). The local PM has Hcl (strength unknown). The H2SO4 in the one shot drain cleaner is "94%" It seems pretty strong it fumes and discolours many things. -- Ed Sirett - Property maintainer and registered gas fitter. The FAQ for uk.diy is at http://www.diyfaq.org.uk Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html |
#17
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Caustic Soda Vs One Shot Sulphuric Acid
On Sat, 31 Dec 2005 12:38:18 GMT, david lang wrote:
wrote: I have recently seen the sulphuric acid to clear blocked drains. Having googled around, it seems I should not mix the 2. Absolutely not!!!!!!!! A serious explosion could result, covering all & sundry with nasty stuff. Even I wouldn't do that. You use caustic to braak up organics - especailly solidified fat - and sulphuric to smash through limescale. Mixed togrther they neutralise each other. After a short period of pyrotechnics. High school chemistry suggests that sodium sulphate and a LOT of heat will be the result. I am not sure if I know ANYTHING that sodium suplhate is good for.. If you had used brick acid (hydrochloric) you could at least have made some salt....:-) I am trying the caustic soda today followed by boiling water and detergent. If that fails, how long should I wait before i move on to the acid? If the drain doesn't unblock, try the caustic again or use rods. There will still be a highly alkaline presense in the drain, so the acid will react with it. When doing anything with caustic, once the blockage has cleared always flush with gallons of fresh water. The public drains can handle mild alkali in quantities better than a gob of conentrate going past, which can get trapped and cause problems. Despite dire warnings, I once again used castic and hot water to clear the christmas grease out of the U bend, and can report that as usual I did not end up in hospital. Use of _boiling_ water from a kettle is a bit of a last resort, and you do get superheated alkali vapour and a lot of splashing, so do that carefully and test outside first with glasses and old clothes on so you know what to expect. Splashes on skin will burn and need washing with lots of cold water fairly immediately. The skin will feel soapy, but no lasting damage ensures. Eyes are a different matter. lots of hot water and off to A & E weher they can at leats give you pain killers - corneas do redrow, but hurt like sin while they do. Ive never had alkali in my eye, but I have had branches and throrns scratch the cornea and cause an extremely painful condition, and infection too. Splashes on cloths bleach them totally and generally rot the fabric too. .. The secret is to get hot caustic to the site and let it stay there and do its work., If the drain is totally blocked, this may not work. What I do in cases of dire ncessity is this. I open up the sink plug, and fill it to the brim with solid castic soda crystals.I keep adidng them until the whole drain is as full as it can get. From a distance, I pour boiling water from a kettle on,. a little at a time, at arms length, because it is a VIOLENT flash steam generator, and 100C caustic splashes HURT. This boiling caustic mixture seeps down, and you can actually hear it boiling inside the pipes, and you get little geyser type eruptions from the sink hole. Thse are usaully vile smelling,. brown gunk and styill highly corrosive. Treat with *utmost* respect. If the drain doesn't clearr, I repeat as often as is necesary until the high concentration hot caustic has travelled to wherever the blockage is. I'd say this brutal technique works 90% of the time. However there are exceptions. - I have had 'female waste' blocking low fall sewage systems outside to a septic tank, with high ground water levels leadng to high tank levels. Here I used reverse flushing from a manhole - pushed a hose up the pipe and probed the turdiness until all the big bits had floated past. - I have had an old toilet so scaled up that female waste and turds and bog paper got stuck in its U bend.Here caustic made short work of the turds, but some industrial acid from a friend - sulphuric IIRC - left in over night dissolved what scale there was - we ended up pushing HUGE chunks of turd and urine and scale composite down the drain in due course. Once that was done the other problem did not reoccur. The loo also looked sparklingly new again. - I have seen tree roots push and fracture old clay pipes, and then get inside. This is really bad news. It can happen with plastic too - the joints may spring, and the roots then charge off towards this lovely nutrient and water supply. Sometimes chemical attack helps keep it at bay, but really, having dug one up in that condition, I'd say that is the only real answer. Dave |
#18
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Caustic Soda Vs One Shot Sulphuric Acid
On Sat, 31 Dec 2005 16:39:24 +0000, sponix wrote:
On 31 Dec 2005 04:34:14 -0800, wrote: I have recently seen the sulphuric acid to clear blocked drains. Having googled around, it seems I should not mix the 2. I am trying the caustic soda today followed by boiling water and detergent. If that fails, how long should I wait before i move on to the acid? In future, tip a cup of soda crystals down the plug hole, followed by a pint of boiling water. Repeat this every week of so and it keeps the drains clear. sponix Thats essentiall what I do to any drain the seems not to be draining as it should. With showers, I pull the thing up from the trap and clean that first. Usually they work once all the pub(l)ic hairs are removed. But a dose of hot casutic (I don't use boiling water unless I have to. Caustic geysers are fun, but they do case localised damage to hands and clothes, and sometimes othere localised objects). All the ******** about 'never add water to caustic, always do it the other way' applies to chemistry lessons, where what you want is a safe reliable way to dilute the stuff. And you are dealing with testosterone infused teenage brains scarcely able to concentrate on what they are doing, and whosw parents will sue if little jonny gets a nasty hurty splash on his yummy tum. WE are looking here for the most violent pressure generating way to get scaldingly hot caustic in a soil pipe. The only serious danger is to your eyes. That is really really serious, and needs massive cold water instantly. Otherwise skin gets scalded, and cold water will reduce that to a minor itrritant in a minute. Respect your caustic. Like your circular saw, your router, your chainsaw, your consumer unit, its capable - not of killing you at least where the others WILL..,but of damaging your eyes...but on a scale of dangerous things I have done its well down the list .. Acid is actually more dangerous.,especially in eyes. Amminia is more instantly incapacitating. The nearest I have cimne to killing msyelf is petrol used to start a bonfire. Hint. Being 8 feet away on a hot summers day and ligthting the match there to light a bit of paper to throw at it, is no help. Petrol vapour is dense and heavy and travels a LONG way on te ground.. The second near miss was failing to let the router bit stop turning before allowing it to swing back into my jeans. Fortunately the jeans stopped it a couple of mm from the femoral artery. Jenas are more replaceable ... Chuck keys left in lathes are another one I remember. ALL DIY is potentially dangerous and also lethal. Falling off ladders, electric shock, severe trauma from power tools - ask your A & E..hernias from lifting sacks, back pain...tetanus and other raging infections from scratches splinters and cuts in the garden... Caustiic burns? I doubt they see one a year. |
#19
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Caustic Soda Vs One Shot Sulphuric Acid
On Sat, 31 Dec 2005 18:02:37 +0000, Nigel Molesworth wrote:
On 31 Dec 2005 04:34:14 -0800, wrote: I have recently seen the sulphuric acid to clear blocked drains. Just had a thought, are you sure it isn't blocked with the polystyrene tiles that fell down? If so, pour down some diesel fuel. Make sure it doesn't catch on fire, not with all those flammable tiles around. diesel is useless, Use celluose thinners. That will dissolve the plstic pipes as well, with luck :-) Oh, sulphuric and hydrochloric make short work of congealed PLASTER and cement waste.. |
#20
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Caustic Soda Vs One Shot Sulphuric Acid
I am not sure if I know ANYTHING that sodium suplhate is good for.. A mild laxative I believe (Glaubers Salts) |
#21
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Caustic Soda Vs One Shot Sulphuric Acid
The Natural Philosopher wrote:
Acid is actually more dangerous.,especially in eyes. I havent experienced either, but everything I've read seems to indicate alkalis are much worse for eyes. Acid results in instant action and surface damage. Alkali in the eye can be so innocuous at first that no action gets taken, but it will eat right into the eyeball gradually, and do major damage. Caustic should be taken seriously re eye damage imho. ALL DIY is potentially dangerous and also lethal. Falling off ladders, electric shock, severe trauma from power tools - ask your A & E..hernias from lifting sacks, back pain...tetanus and other raging infections from scratches splinters and cuts in the garden... yeah. The continuing popularity of diy is one of the things that reminds me that all the nanny state's attempts to turn our world into a safe powerles victim zone is just not the way a whole lot of people want to go in life, and will not go. NT |
#22
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Caustic Soda Vs One Shot Sulphuric Acid
Stuart Noble wrote:
[The Nat. Phil. wrote] I am not sure if I know ANYTHING that sodium suplhate is good for.. A mild laxative I believe (Glaubers Salts) Or you can add it to sulphuric acid to make an electrolyte for anodizing aluminium. -- Andy |
#23
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Caustic Soda Vs One Shot Sulphuric Acid
In message , Stuart Noble
writes I am not sure if I know ANYTHING that sodium suplhate is good for.. A mild laxative I believe (Glaubers Salts) Must be a placebo -- geoff |
#24
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Caustic Soda Vs One Shot Sulphuric Acid
Stuart Noble wrote:
I am not sure if I know ANYTHING that sodium suplhate is good for.. A mild laxative I believe (Glaubers Salts) I think mixing a strong acid with a strong alkali would have a stronger effect :-) Dave |
#25
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Caustic Soda Vs One Shot Sulphuric Acid
In article , Andrew
Mawson Sat, 31 Dec 2005 12:40:23 writes In my experience caustic soda is good for fatty deposits - kitchens etc, and sulphuric acid is good for hair balls - baths & showers. Beware that sulphuric acid will stain baths and shower trays so be very careful how you pour it. Quote from http://proterraonline.homestead.com/homecare_drains.html Although it is sold commercially as a drain cleaner, never use caustic soda to open a drain. It will combine with the grease from soap or food wastes to form an insoluble compound. Potash lye or caustic potash may be added to finish opening a drain, but never use them on a completely stopped up drain. They may take as long as overnight to work, and if you ultimately have to open the trap, the chemicals would be a hazard. Maybe US soap and food is different?? -- Les Desser (The Reply-to address IS valid) |
#26
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Caustic Soda Vs One Shot Sulphuric Acid
Les Desser wrote:
In article , Andrew Mawson Sat, 31 Dec 2005 12:40:23 writes In my experience caustic soda is good for fatty deposits - kitchens etc, and sulphuric acid is good for hair balls - baths & showers. Beware that sulphuric acid will stain baths and shower trays so be very careful how you pour it. Quote from http://proterraonline.homestead.com/homecare_drains.html Although it is sold commercially as a drain cleaner, never use caustic soda to open a drain. It will combine with the grease from soap or food wastes to form an insoluble compound. The soap it forms will always be water soluble, but not always instantly. A bar of soap would be pretty useless if it dissolved as quickly as you want a blockage to disappear. Also, the soaps of fatty acids are often much bulkier than the original oil/fat. |
#27
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Caustic Soda Vs One Shot Sulphuric Acid
On Mon, 02 Jan 2006 13:59:58 GMT, Stuart Noble wrote:
Although it is sold commercially as a drain cleaner, never use caustic soda to open a drain. It will combine with the grease from soap or food wastes to form an insoluble compound. The soap it forms will always be water soluble Quite. Considering that soap is *made* from caustic soda and oil. -- Nigel M |
#28
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Caustic Soda Vs One Shot Sulphuric Acid
On Sun, 1 Jan 2006 22:02:58 +0000, Les Desser wrote:
In article , Andrew Mawson Sat, 31 Dec 2005 12:40:23 writes In my experience caustic soda is good for fatty deposits - kitchens etc, and sulphuric acid is good for hair balls - baths & showers. Beware that sulphuric acid will stain baths and shower trays so be very careful how you pour it. Quote from http://proterraonline.homestead.com/homecare_drains.html Although it is sold commercially as a drain cleaner, never use caustic soda to open a drain. It will combine with the grease from soap or food wastes to form an insoluble compound. That does not compute. I've used it many any times to dissolve fats - on cookers and in the drains. It may form insoluble saltst with other things however..but fat seems to be teh most uysal cause. Potash lye or caustic potash may be added to finish opening a drain, but never use them on a completely stopped up drain. They may take as long as overnight to work, and if you ultimately have to open the trap, the chemicals would be a hazard. Maybe US soap and food is different?? I'd agree that a completely blocked drain is something to be wary of. But I don't understand the rest of it. Soap IS |(or was ) sheep fat and caustic... |
#29
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Caustic Soda Vs One Shot Sulphuric Acid
The Natural Philosopher wrote:
On Sun, 1 Jan 2006 22:02:58 +0000, Les Desser wrote: In article , Andrew Mawson Sat, 31 Dec 2005 12:40:23 writes In my experience caustic soda is good for fatty deposits - kitchens etc, and sulphuric acid is good for hair balls - baths & showers. Beware that sulphuric acid will stain baths and shower trays so be very careful how you pour it. Quote from http://proterraonline.homestead.com/homecare_drains.html Although it is sold commercially as a drain cleaner, never use caustic soda to open a drain. It will combine with the grease from soap or food wastes to form an insoluble compound. That does not compute. I've used it many any times to dissolve fats - on cookers and in the drains. It may form insoluble saltst with other things however..but fat seems to be teh most uysal cause. Potash lye or caustic potash may be added to finish opening a drain, but never use them on a completely stopped up drain. They may take as long as overnight to work, and if you ultimately have to open the trap, the chemicals would be a hazard. Maybe US soap and food is different?? I'd agree that a completely blocked drain is something to be wary of. But I don't understand the rest of it. Soap IS |(or was ) sheep fat and caustic... Is/ was olive oil and caustic. Sheep fat is lanolin IIRC |
#30
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Caustic Soda Vs One Shot Sulphuric Acid
On Tue, 03 Jan 2006 09:06:46 +0000, Stuart Noble wrote:
The Natural Philosopher wrote: On Sun, 1 Jan 2006 22:02:58 +0000, Les Desser wrote: But I don't understand the rest of it. Soap IS |(or was ) sheep fat and caustic... Is/ was olive oil and caustic. Sheep fat is lanolin IIRC I though lanolin was sheep sebum, ie wool/skin grease? Tim |
#31
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Caustic Soda Vs One Shot Sulphuric Acid
Stuart Noble wrote:
[snip] I'd agree that a completely blocked drain is something to be wary of. But I don't understand the rest of it. Soap IS |(or was ) sheep fat and caustic... Is/ was olive oil and caustic. Sheep fat is lanolin IIRC Only Castille soap is mnade from olive oil and lye. Almost any old fat will do for saponification and early soaps were made with animal fat. There's a clue in the name "Palmolive" about the sources of the oils they use for saponification. I've found that rape oil is useless for soap making. Needs loads of lye and produces a nasty, hard, very alkaline soap which is probably best used for cleaning floors rather than hands. The original soaps were supposed to be produced from the fat and woodash run off from ritual sacrifices. |
#32
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Caustic Soda Vs One Shot Sulphuric Acid
On Tue, 03 Jan 2006 09:45:09 +0000, Steve Firth wrote:
The original soaps were supposed to be produced from the fat and woodash run off from ritual sacrifices. Did they have to wash after using it? -- Nigel M |
#33
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Caustic Soda Vs One Shot Sulphuric Acid
Tim S wrote:
On Tue, 03 Jan 2006 09:06:46 +0000, Stuart Noble wrote: The Natural Philosopher wrote: But I don't understand the rest of it. Soap IS |(or was ) sheep fat and caustic... Is/ was olive oil and caustic. Sheep fat is lanolin IIRC I though lanolin was sheep sebum, ie wool/skin grease? Yup, lovely for the hands.... you can buy skin lotion with lanolin in it, read the label. It's good. |
#34
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Caustic Soda Vs One Shot Sulphuric Acid
On Tue, 03 Jan 2006 13:12:13 +0000, Chris Bacon wrote:
Tim S wrote: On Tue, 03 Jan 2006 09:06:46 +0000, Stuart Noble wrote: The Natural Philosopher wrote: But I don't understand the rest of it. Soap IS |(or was ) sheep fat and caustic... Is/ was olive oil and caustic. Sheep fat is lanolin IIRC I though lanolin was sheep sebum, ie wool/skin grease? Yup, lovely for the hands.... you can buy skin lotion with lanolin in it, read the label. It's good. Yep, you can also buy pure lanolin, sold as "nipple cream" but very good for babies with skin problems. Only source I could find was on teh Internet, none of the local shops had heard of it. Tim |
#35
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Caustic Soda Vs One Shot Sulphuric Acid
Tim S wrote:
Chris Bacon wrote: Tim S wrote: I though lanolin was sheep sebum, ie wool/skin grease? Yup, lovely for the hands.... you can buy skin lotion with lanolin in it, read the label. It's good. Yep, you can also buy pure lanolin, sold as "nipple cream" Good Lord. I am astounded. |
#36
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Caustic Soda Vs One Shot Sulphuric Acid
On Tue, 03 Jan 2006 13:46:09 +0000, Chris Bacon wrote:
Tim S wrote: Chris Bacon wrote: Tim S wrote: I though lanolin was sheep sebum, ie wool/skin grease? Yup, lovely for the hands.... you can buy skin lotion with lanolin in it, read the label. It's good. Yep, you can also buy pure lanolin, sold as "nipple cream" Good Lord. I am astounded. Heh. I should clarify that as: nipple cream for breast feeding mothers; not for inflatable rubber bondage perverts in Croydon. |
#37
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Caustic Soda Vs One Shot Sulphuric Acid
On Tue, 03 Jan 2006 13:32:53 +0000, Tim S wrote:
| On Tue, 03 Jan 2006 13:12:13 +0000, Chris Bacon wrote: | | Tim S wrote: | On Tue, 03 Jan 2006 09:06:46 +0000, Stuart Noble wrote: | The Natural Philosopher wrote: | But I don't understand the rest of it. Soap IS |(or was ) sheep fatand | caustic... | | Is/ was olive oil and caustic. Sheep fat is lanolin IIRC | | I though lanolin was sheep sebum, ie wool/skin grease? | | Yup, lovely for the hands.... you can buy skin lotion | with lanolin in it, read the label. It's good. | | Yep, you can also buy pure lanolin, sold as "nipple cream" but very good | for babies with skin problems. Only source I could find was on teh | Internet, none of the local shops had heard of it. It used to be extracted from Bradford's sewage at Esholt Sewage works. Sadly the wool washing trade in Bradford is sadly almost dead, so ATM no sidelines for Esholt :-( -- Dave Fawthrop dave hyphenologist co uk 17,000 free e-books at Project Gutenberg! http://www.gutenberg.net For Yorkshire Dialect go to www.hyphenologist.co.uk/songs/ |
#38
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Caustic Soda Vs One Shot Sulphuric Acid
In message , Tim S
writes On Tue, 03 Jan 2006 13:46:09 +0000, Chris Bacon wrote: Tim S wrote: Chris Bacon wrote: Tim S wrote: I though lanolin was sheep sebum, ie wool/skin grease? Yup, lovely for the hands.... you can buy skin lotion with lanolin in it, read the label. It's good. Yep, you can also buy pure lanolin, sold as "nipple cream" Good Lord. I am astounded. Heh. I should clarify that as: nipple cream for breast feeding mothers; not for inflatable rubber bondage perverts in Croydon. No, the new craze (SFW) is ... http://icsouthlondon.icnetwork.co.uk...tm_objectid=16 530374&method=full&siteid=53340&headline=-it-s-my-cash-box--not-a-bomb--- name_page.html -- geoff |
#39
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Caustic Soda Vs One Shot Sulphuric Acid
On Tue, 3 Jan 2006 00:36:45 +0000, The Natural Philosopher
wrote: Although it is sold commercially as a drain cleaner, never use caustic soda to open a drain. It will combine with the grease from soap or food wastes to form an insoluble compound. That does not compute. I've used it many any times to dissolve fats - on cookers and in the drains. It's generally a bad idea to use chemicals on a _totally_ blocked drain. If it's _that_ bad, then there's something physical down there and you're just going to have to use physical methods to shift it. One of the most effective toilet blockers known to man is toilet roll and a bar of soap. They're both perfectly soluble (sic) in small quantities, but put a whole bar down there and it just ain't going to wash away. "Soluble" only works in a sufficiency of solvent to do it - a grease blob in a narrow pipe is perfectly capable of resisting dissolution if there's no flow, no matter how much caustic soda you get to it. |
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Caustic Soda Vs One Shot Sulphuric Acid
On Tue, 03 Jan 2006 13:56:48 +0000, Tim S wrote:
Yep, you can also buy pure lanolin, sold as "nipple cream" Good Lord. I am astounded. Heh. I should clarify that as: nipple cream for breast feeding mothers; Cheaper as "Bag Balm" though. The mothers in that case are cows Bat's #1 Law: Any obscure product of interest to uk.d-i-y readers is probably bought more cheaply and in larger portions from a farmer's shop than from Boots. not for inflatable rubber bondage perverts in Croydon. Do BAE _have_ an office in Croydon? |
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