-
Members of the previous forum can retrieve their temporary password here, (login and check your PM).
Safety of rubber glove submersion into lye water
- Thread starter Guest
- Start date
SWIM submerged his nitrile gloves in NaOH solution with no problem.. what kind of rubber is it?
magic clown
aka Slap Stick Sam
I am more curious to know why you would want to submerge your hands in lye. I can't think of any extraction proscess that requires such a thing. Most people are happy to stir useing rubber gloves to protect against splashes. Rubber gloves will eventually disintigrate after a few days. They will provide perfectly adequate protection for your needs. After your extraction, it is good practice to dispose of such contaminated items.
Swim just submerged the tip of the gloves.. It was because of his improvising technique of making separation of naphtha/acqueous layer... Since his original container was quite wide, the naphtha layer was too thin to pull with pipette. So he submerged a glass into the mixture (with his finger tips going inside the water). This way the layer of naphtha was the first to go in the glass.. Then SWIM pulled the glass out, and could pipette out of it much much easier
but I dont know what is the case of 'littlewing'
but I dont know what is the case of 'littlewing'
make sure theres is no little holes in the gloves. the lye will eat your skin apart especially at the high concentrations used in these kinds of extractions.
yes effective but there's a few 'its and bits' that one only realizes when doing it.. Like for example, the side of the glass will be full of the basified mix, and as soon as you pull out the glass, some will be dropping. So one gotta think of where he/she is doing this work. SWIM did it on top of a stainless steel table/sink, where he could just wet and clean the table/sink easily. If the table was some other sensitive material it might have stained
Also, even though the naphtha layer stays on top of the glass and any basified mix will go to the bottom, still little dropplets of the basified mix may be 'stuck' to the inside side of the glass on the top of the naphtha part. To get it away, what SWIM does is, he doesnt fill the whole glass up when submerging it in the mix. He fills up till, lets say, two thirds..
Then he turns on the water in the sink just a little bit so that it is not just dropping, but a bit more water so that its a continuous thin strip. So anyways as soon as he pulls the glass out of the big container, he uses this thin line of water from the sink to clean the outside of the glass first (and since you have to 'tilt' the glass a little bit for the water to flow through the outside of the glass to clean it, then its good that it was not filled up to the top or once you tilt it, you might spill some of the solvent inside the glass)
Then, after cleaning the outside of the glass, SWIM also quickly passes the glass just a tiny bit tilted under the water, so that this thin line of water falls inside the glass, but running through the sides.. In this way, it will go to the bottom of the glass, taking with it any remains of the basified mix that might be on the inner sides of the glass. Have to be careful in this part because you will be filling up the glass, so if it was too full to begin with you will spill solvent. Thats why being half full or bit more to begin with helps, because then it can fill up quite a bit with this water without risking spilling.
I tried to describe but only practice shows the little tricky bits.. Make a test run with just a bit of naphtha in the glass to begin with..
and yes be very very careful about not having little holes in the gloves!
Also, even though the naphtha layer stays on top of the glass and any basified mix will go to the bottom, still little dropplets of the basified mix may be 'stuck' to the inside side of the glass on the top of the naphtha part. To get it away, what SWIM does is, he doesnt fill the whole glass up when submerging it in the mix. He fills up till, lets say, two thirds..
Then he turns on the water in the sink just a little bit so that it is not just dropping, but a bit more water so that its a continuous thin strip. So anyways as soon as he pulls the glass out of the big container, he uses this thin line of water from the sink to clean the outside of the glass first (and since you have to 'tilt' the glass a little bit for the water to flow through the outside of the glass to clean it, then its good that it was not filled up to the top or once you tilt it, you might spill some of the solvent inside the glass)
Then, after cleaning the outside of the glass, SWIM also quickly passes the glass just a tiny bit tilted under the water, so that this thin line of water falls inside the glass, but running through the sides.. In this way, it will go to the bottom of the glass, taking with it any remains of the basified mix that might be on the inner sides of the glass. Have to be careful in this part because you will be filling up the glass, so if it was too full to begin with you will spill solvent. Thats why being half full or bit more to begin with helps, because then it can fill up quite a bit with this water without risking spilling.
I tried to describe but only practice shows the little tricky bits.. Make a test run with just a bit of naphtha in the glass to begin with..
and yes be very very careful about not having little holes in the gloves!
fourthripley
Rising Star
I've got lye on my hands, and through holes in gloves, quite a few times; while not to be recomended its not like the molecular acid blood scene in Alien. Skin becomes soapy but a good rinse under running water and a splash of vinegar to be sure and all is well.
endlessness said:
Wouldn't it be easier and less messy to siphon off most of the lower layer and then tip the remaining contents into the glass as not to waste some of the solvent that sticks to the gloves and the side of the glass? Plus using the before said method will probably leave some solvent on top of the original solution.
well yeah each person has their own way, all are valid.. whatever works for you 
I just dont understand what you mean by your last sentence.. Do you mean that one would not pick up all the solvent layer? Sure its possible, just submerge the glass until all the solvent goes in it, plus a little more of the basified liquid (which is easy to separate in a thinner tube). You can also repeat the process if there is some left over.. and lastly, even if there was a bit of solvent left, it would be no problem, as it will mix with the next pulls, nothing will be wasted.
But yes if you have a siphon with pump, or you improvised a little pump or something, then I guess its less messy.
I just dont understand what you mean by your last sentence.. Do you mean that one would not pick up all the solvent layer? Sure its possible, just submerge the glass until all the solvent goes in it, plus a little more of the basified liquid (which is easy to separate in a thinner tube). You can also repeat the process if there is some left over.. and lastly, even if there was a bit of solvent left, it would be no problem, as it will mix with the next pulls, nothing will be wasted.
But yes if you have a siphon with pump, or you improvised a little pump or something, then I guess its less messy.
endlessness said:
Well after someone finds out the baster they purchased was useless for what was intended they realize they can use it for other things.
thepureskunk
Rising Star
Some interesting posts here, thanks!
Seems there are many ways to skin a cat..
:idea:
Seems there are many ways to skin a cat..
:idea:
magic clown
aka Slap Stick Sam
You are correct thepureskunk, there are many ways to skin a cat but not all are as good as this method
You will need the following items, cat, parring knife, pull knife, a pair of needle nose pliers, vice grips, vice. 16 penny nail, cutting board, hammer 1 gal of water. and if you select to use a live cat we suggest you use gloves.
First, you need a cat. A dead one is easier to work with, but a live one won't be alive to long through the procedure anyways. With a pair of needle nose pliers stick one side in the cats mouth and then the other over the cats nose and mouth and pick it up like you were showing off a prized bass. Slam the cat on a 16 penny nail that you hammered in the wood making sure to hit the cats head square in the middle of the nail so it won't move when you start to debone.
If you are using a dead cat just hammer the nail through the cats head.
With the cats head secured to the nail, take 1 gal of boiling water and pour it on the cat carcass, this will make getting the skin off much easier. Now take your parring knife and slit the cats belly starting at the neck and ending at the rectum, take out all the catguts making sure to save the heart off to the side for later use. At this time you may now cut the cats head off and set aside for later use and rinse the inside of the cat thoroughly. Take one hand and hold what used to be known as the "scruff" of the cats neck and start "skinning" with your knife making sure not to rip to much meat from the bone as you do this.
When you are done you should have #1 the tail #2 the skin and the meat on bone part. Make a small cut at the cats taint and separate the tail and skin from the body be sure to set these items aside for later use, now you are ready to start the de-boning process. I know for some the fun would be over by now, but it's just now beginning.
Clamp the neck bone with a pair of vice-grips and put the vice-grips in a vice making sure the cat carcass is in the 300 position. At this time you take your pull knife and start scrapping it down the neck of the cat until you hit the front haunches, at this time you need to use your parring knife again and cut around the bone of the front legs and paws.....Peel the meat from the back all the way to the rear hind quarter and again use your parring knife to cut around the legs and paws and continue your cut to the anus and finish.
At this time you throw away the meat because it serves no purpose, but the bones can be used to make a marionette for you kids to play with You can use all the left over parts as a wall hanging or a door knocker.
You can take the heart and put in a jar of vinegar and in 2 weeks it turns into a super ball, and the skin can be fashioned into cloths for barbie, You can even use the skin with the tail to make a fine cat skin cap.
You will need the following items, cat, parring knife, pull knife, a pair of needle nose pliers, vice grips, vice. 16 penny nail, cutting board, hammer 1 gal of water. and if you select to use a live cat we suggest you use gloves.
First, you need a cat. A dead one is easier to work with, but a live one won't be alive to long through the procedure anyways. With a pair of needle nose pliers stick one side in the cats mouth and then the other over the cats nose and mouth and pick it up like you were showing off a prized bass. Slam the cat on a 16 penny nail that you hammered in the wood making sure to hit the cats head square in the middle of the nail so it won't move when you start to debone.
If you are using a dead cat just hammer the nail through the cats head.
With the cats head secured to the nail, take 1 gal of boiling water and pour it on the cat carcass, this will make getting the skin off much easier. Now take your parring knife and slit the cats belly starting at the neck and ending at the rectum, take out all the catguts making sure to save the heart off to the side for later use. At this time you may now cut the cats head off and set aside for later use and rinse the inside of the cat thoroughly. Take one hand and hold what used to be known as the "scruff" of the cats neck and start "skinning" with your knife making sure not to rip to much meat from the bone as you do this.
When you are done you should have #1 the tail #2 the skin and the meat on bone part. Make a small cut at the cats taint and separate the tail and skin from the body be sure to set these items aside for later use, now you are ready to start the de-boning process. I know for some the fun would be over by now, but it's just now beginning.
Clamp the neck bone with a pair of vice-grips and put the vice-grips in a vice making sure the cat carcass is in the 300 position. At this time you take your pull knife and start scrapping it down the neck of the cat until you hit the front haunches, at this time you need to use your parring knife again and cut around the bone of the front legs and paws.....Peel the meat from the back all the way to the rear hind quarter and again use your parring knife to cut around the legs and paws and continue your cut to the anus and finish.
At this time you throw away the meat because it serves no purpose, but the bones can be used to make a marionette for you kids to play with You can use all the left over parts as a wall hanging or a door knocker.
You can take the heart and put in a jar of vinegar and in 2 weeks it turns into a super ball, and the skin can be fashioned into cloths for barbie, You can even use the skin with the tail to make a fine cat skin cap.
well that was... interesting...
The rubber gloves should be fine for a bit. Be wary of holes and keep a bit of vinegar near by. If you do manage to get lye on your skin it wont burn it off like in whatever saw movie the girl had to reach into the water to try and get the keys but it will start to sting after a half second and make your hands feel slippery if you get a lot on you. But the lye solution used even in STB tek's isnt really that bad at all, less painful than a jellyfish.
Taking this opportunity to discuss lye cleanup:
If you start to feel a sting because of a hole in the gloves or otherwise get some on you don't panic. Just calmly take the gloves off and any clothes you've spilled it on and grab a paper towel and bottle of vinegar. Put a clump on the end of the bottle and turn it over quick and then back straight up and down so you have a wet paper towel. Wipe off the lye solution with that first and then use water to wash away anything left over.
The clothes thing is why you want to wear loose clothing that covers as much of your body as possible. If you accidently spill a bunch on your shirt then you can whip off the shirt in a second and have hardly any lye on your actual skin (WEAR GOGGLES DONT GET THIS IN YOUR EYES!). Say bye to the shirt though.
If you get dry lye flakes/crystals on you try to brush them off without grinding them into your skin first. Then use vinegar. Whatever you do don't use water until after you've neutralized it with vinegar. It'll burn like the dickens and may remove a layer or two of skin if you go straight to water. Think fightclub.
The rubber gloves should be fine for a bit. Be wary of holes and keep a bit of vinegar near by. If you do manage to get lye on your skin it wont burn it off like in whatever saw movie the girl had to reach into the water to try and get the keys but it will start to sting after a half second and make your hands feel slippery if you get a lot on you. But the lye solution used even in STB tek's isnt really that bad at all, less painful than a jellyfish.
Taking this opportunity to discuss lye cleanup:
If you start to feel a sting because of a hole in the gloves or otherwise get some on you don't panic. Just calmly take the gloves off and any clothes you've spilled it on and grab a paper towel and bottle of vinegar. Put a clump on the end of the bottle and turn it over quick and then back straight up and down so you have a wet paper towel. Wipe off the lye solution with that first and then use water to wash away anything left over.
The clothes thing is why you want to wear loose clothing that covers as much of your body as possible. If you accidently spill a bunch on your shirt then you can whip off the shirt in a second and have hardly any lye on your actual skin (WEAR GOGGLES DONT GET THIS IN YOUR EYES!). Say bye to the shirt though.
If you get dry lye flakes/crystals on you try to brush them off without grinding them into your skin first. Then use vinegar. Whatever you do don't use water until after you've neutralized it with vinegar. It'll burn like the dickens and may remove a layer or two of skin if you go straight to water. Think fightclub.