Silver Nitrate

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Voice
Posts: 280
Joined: 12 May 2006, 10:00
State/Location: VIC

Silver Nitrate

Post by Voice »

G'day All,
I am currently running around the place with spots of Silver Nitrate all over my neck - result of a medical procedure. And, of course, I have forgotten how to rid myself of silver nitrate stains.
Can anyone give me a safe method of cleaning up my skin.
Thank you
Maree
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Sassi
Posts: 432
Joined: 17 Sep 2007, 12:43
State/Location: NSW

Re: Silver Nitrate

Post by Sassi »

Doesn/t vitamin c work??? Or is that for something else? actually pretty sure it is for silver nitrate :-) You rub it on your skin where the stain is... not drinking it!

Sass :giggle:
RosalieM
Posts: 1795
Joined: 20 Mar 2007, 10:00
Job Title: Lab Assistant
Suburb: Tamworth
State/Location: NSW

Re: Silver Nitrate

Post by RosalieM »

I've always just waited till the skin naturally replaces itself when I've had it on my hands after preparing it... Can take more than a week! I don't think I knew there was another option, but if there is, maybe I'll try that next time!
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Sassi
Posts: 432
Joined: 17 Sep 2007, 12:43
State/Location: NSW

Re: Silver Nitrate

Post by Sassi »

D'OH... vit C is for iodine stains... not much to do about silver nitrate, just gotta wait til it wears off :yuck: Sorry if I gave you hope there :-(

Sass :coffee:
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Whspa
Posts: 345
Joined: 01 Jun 2006, 10:00
State/Location: NSW

Re: Silver Nitrate

Post by Whspa »

I just found this on the net and found it very informative.

(1) Silver nitrate is soluble, so it should wash off with water, right? No,
not with tap water. Tap water is chlorinated. Once the chlorinated tap
water hits the silver nitrate you get silver chloride which is exceedingly
insoluble. If you have silver nitrate on your hands or clothes or anywhere
else, and you wash with tap water, you just convert the silver salts to
insoluble silver chloride, and essentially bind it in place. Of course, on
your hands, some silver nitrate turns into silver chloride because of NaCl
in your skin, and even washing first with DI water won't get rid of this.

(2) If we have silver halides in our skin, clothes, whatever... and it has
not yet turned dark... this is when photographic fixer (primarily sodium
thiosulfate) will work because it will react with silver halides and allow
them to be washed away. This is exactly what happens when you "fix" black
and white photographic film and paper. The goal of the fixer is to wash
away the silver halide that has not been reduced to silver metal.


If you get silver nitrate on your hands, try this:

(A) rinse hands with DI water to get rid of any silver nitrate that hasn't
yet become silver chloride
(B) bathe hands with photographic-strength fixer (or sodium thiosulfate) to
get rid of any silver halides
(C) do above procedure before light has a chance to reduce the silver,
turning the spots black... because once it's silver, you have to bathe hands
in bleach or iodine.
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franco
Posts: 105
Joined: 30 May 2006, 10:00
Job Title: Lab Technician
School: Tuart College
Suburb: Tuart Hill
State/Location: WA

Re: Silver Nitrate

Post by franco »

I keep a can of 'Silvo' silver polish handy in case of an accidental spill in the labs and it works fine on benches and floors. Reading the can it's flammable and contains 6g/L ammonia but doesn't give a full list of ingredients. It's never done my hands any harm when cleaning silver electrodes at work or the silverware at home.
Cheers,
Fran
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Labbie
Posts: 3240
Joined: 28 Nov 2006, 10:00
Job Title: Retired
Suburb: At Home
State/Location: NSW

Re: Silver Nitrate

Post by Labbie »

Well done Carol. Excellent.
Regards Labbie

Lab Manager/Lab Tech, mind reading etc etc
Now retired :wub:
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