Jor
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Gloves
First of all I did use the search machine but couldnt really find an answer to my question.
My question is:
Do latex gloves offer protection to acids like nitric, hydrochloric and sulphuric? I know they offer no protection against acetic.
Second, what gloves would offer good protection against all of these including concentrated hydroxide, that are easily buyable OTC?
Joris
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The_Davster
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Latex offers enough resistance to 70% nitric, 37% HCl and 98% sulfuric that you will not be affected if you remove them quick after any spill. I am
obsessive about taking gloves off after contact, so I do not know about longer contact. However hot 98% white fuming nitric will instantly dissolve
latex on contact, hitting the skin below before you would have a chance to remove the glove.
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not_important
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You may find these lists useful
http://www.ansellpro.com/download/Ansell_7thEditionChemicalR...
http://www.microflex.com/ChemChartLatexNitrile.pdf
http://www.des.umd.edu/ls/gloves.html
A list of lists for gloves
http://www.ehs.ufl.edu/Lab/CHP/gloves.htm
hardware stores often carry neoprene and nitrile gloves, both of which offer resistance to chemicals that latex doesn't do so well with.
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woelen
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Another trick may be to use two gloves over each other. If you get any spills on the outer one, then discard that and then use the inner one as outer
one next time and take a new one as the inner one. I use this for experiments with formic acid, thionyl chloride, sulphuryl chloride and conc. HNO3
and H2SO4. I do not use gloves at all with conc. HCl, conc. HBr, <50% H2SO4, <25% HNO3, any conc. of NH3 and NaOH. If I get a drop on my skin
from those solutions, then I quickly rinse and no adverse effects occurred at all. The NaOH and to a lesser extent NH3 requires quite some rinsing
though, I keep rinsing, until the fatty feeling has gone completely.
Liquid bromine I do not pour all at. I use a pasteur pipette to transfer that from its bottle.
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Jor
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And Wilco,
You mean latex here right?
If yes, then I'm sure I use latex as davster als indicates it works well. This is because my mother is a dentist and she can get hundreds off them for
pretty much nothing.
[Edited on 13-1-2008 by Jor]
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vulture
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| Quote: |
Liquid bromine I do not pour all at. I use a pasteur pipette to transfer that from its bottle. |
Be careful with that, the vapor pressure of bromine is sometimes sufficient to push itself out of the pipette.
If you want to be on the safe side, get those black neoprene gloves. They have very good chemical resistance.
[Edited on 13-1-2008 by vulture]
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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YT2095
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these are the exact sort I buy: http://www.cromwell.co.uk/BES9615220B
I really can`t fault them in anyway, and the price makes disposal not an issue.
\"In a world full of wonders mankind has managed to invent boredom\" - Death
Twinkies don\'t have a shelf life. They have a half-life! -Caine (a friend of mine)
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woelen
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| Quote: | Originally posted by Jor
And Wilco,
You mean latex here right?
If yes, then I'm sure I use latex as davster als indicates it works well. This is because my mother is a dentist and she can get hundreds off them for
pretty much nothing.
[Edited on 13-1-2008 by Jor] |
Yes, I mean latex. Easy to obtain and cheap. But as mentioned by others, the really strong oxidizing stuff eats away latex quickly. But as long as you
don't work with Br2, 90+% HNO3 and other similarly oxidizing nasties, I think a two-layer system as I described above is perfectly safe.
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Finnnicus
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Sorry to bring up an oldie, but nitrile gloves offer the most protection, except for with oxidizers? Nitric acid particularly.
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Steve_hi
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I asked about some glove at the local feed store and they phoned the company. The gloves they had in stock were not recomended for acids but they said
they had neoprene gloves that were recomended for all acids so the hardware store ordered some.Neoprox I think she said
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plante1999
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Glad they did, if one is to wear latex gloves, then he would be better not to wear any gloves. Everything go through latex, and could possibly melt it
on your hand.
Something I learned with neoprene: the gloves don't like organic compound, my gloves was touching a motor oil spill for an hour or so, and was all
undulated, like moist paper book.
I never asked for this.
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BromicAcid
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An updated sheet from not_important's post above:
http://www.ansellpro.com/download/Ansell_7thEditionChemicalR...
This is what we use where I work. Impress upon yourself that there is no perfect glove, only situational solutions unless you're willing to shell out
for laminate gloves which can be a pain to work in.
Remember gloves are personal protective equipment (PPE) they are only meant to take over when containment/engineering measures fail. They are not
intended for immersion or prolonged contact unless they specifically state that function. Note that even glove with excellent chemical resistance on
that chart can let material through on soaking and that gloves with good chemical resistance let through "6 to 50 eyedropper sized drops per hour"
which may be plenty to kill you depending on the chemical.
[Edited on 4/14/2013 by BromicAcid]
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plante1999
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Wait what? There is polyvinyl alcohol glove... Oups I got a drop of the highly corrosive substance, dihyrogen monoxide. I must imediatly remove my
glove?
No seriously, I would not even consider a glove that dissolve in water.
I never asked for this.
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Vargouille
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On the other hand, PVA has good resistance on some common organic solvents, like chloroform, where others fail.
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Pyro
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Though those charts can be misleading! they are meant for people who work with those chemicals all day and come in contact with them a lot during that
time.
I personally prefer latex as its white, all stains show right up. Vulture, I've had that when I was wearing latex gloves, a drop got on them while
pipetting, I immediately removed it, and because I was curious I left it on the table. about half an hour later I came back and looked and smelled
it, it smelt very strange, not like Br2 at all, but there was no penetration.
I have recently bought 2 pairs of these:
http://www.hinmeijer.nl/product/571720/Nitopren_174_handscho...
14,22 eur for 2 pairs isn't bad at all
all above information is intellectual property of Pyro.  |
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