Sciencemadness Discussion Board

Dissolving silver metal with ammonium thiosulfate

symboom - 12-2-2017 at 15:29

So I have been researching ways to remove silver nitrate from skin I have a couple stains on my skin

Silver dissolves in sodium cyanide well known

Can it be removed with potassium ferricyanide as this has a cyinide group

Also can I remove the stain with ammonium thiosulfate
Supposidly used for desolving gold


[Edited on 12-2-2017 by symboom]

pantone159 - 13-2-2017 at 09:50

I would try thiosulfate long before CN or ferricyanide! Could use Na or NH4 thiosulfate. Both probably work. Thiosulfate will complex with Ag and make something soluble.

wg48 - 13-2-2017 at 10:08

Quote: Originally posted by pantone159  
I would try thiosulfate long before CN or ferricyanide! Could use Na or NH4 thiosulfate. Both probably work. Thiosulfate will complex with Ag and make something soluble.


In silver halide photography thiosulphate is used to remove silver halide via a complex leaving the grains of silver untouched. From memory to remove the silver with thiosulphate it had to be oxidised first to a halide.

DraconicAcid - 13-2-2017 at 10:16

The stains will wear off by themselves. The outer layers of your skin are constantly being sloughed off and replaced, and the stained ones will be gone in a week or so. No sense trying to scrub it off with cyanide when all you have to do is wait.

Chlorine - 13-2-2017 at 10:58

Quote: Originally posted by DraconicAcid  
The stains will wear off by themselves. The outer layers of your skin are constantly being sloughed off and replaced, and the stained ones will be gone in a week or so. No sense trying to scrub it off with cyanide when all you have to do is wait.


This is your best option, unless you have a job interview or a major event within the next 5 days, I'd just wait.

symboom - 13-2-2017 at 14:23

Quote: Originally posted by DraconicAcid  
The stains will wear off by themselves. The outer layers of your skin are constantly being sloughed off and replaced, and the stained ones will be gone in a week or so. No sense trying to scrub it off with cyanide when all you have to do is wait.



I also have stains on my table that need to be removed
Also maybe potassium ferrocyanide
I.just dont want to buy it and find out it doesnt work


[Edited on 13-2-2017 by symboom]

[Edited on 13-2-2017 by symboom]