vibbzlab
Hazard to Others
Posts: 241
Registered: 6-11-2019
Member Is Offline
Mood: Always curious
|
|
Any way in recycling silver nitrate from its oxides?
I used up my silver nitrate for a qualitative analysis. Silver nitrate was made to react with sodium thiosulfate and the final ppt was washed and
dried. Is there any way to recycle silver nitrate from it
Amateur chemist. Doctor by profession
Have a small cute home chemistry lab.
Please do check out my lab in YouTube link below
This is my YouTube channel |
|
|
Sulaiman
International Hazard
Posts: 3721
Registered: 8-2-2015
Location: 3rd rock from the sun
Member Is Offline
|
|
I suspect that rather than an oxide, the silver has formed a sulphide, Ag2S,
unless you have a large quantity of Ag2S it is probably not worth recovering
because afaik silver sulphide is infamously difficult to recycle to silver.
CAUTION : Hobby Chemist, not Professional or even Amateur
|
|
|
wg48temp9
National Hazard
Posts: 786
Registered: 30-12-2018
Location: not so United Kingdom
Member Is Offline
|
|
From my photograph phase I would think the reaction of silver compounds with thiosulfate produces soluble products or it does at the usual levels
found in thiosulphate types of photographic fixing solutions.
You will probably find explanations on how to recover the silver from used hypo fixing solutions on the web.
The oxide will dissolve in nitric acid and acetic acid and probably many other acids but not sulphuric or hydrochloric.
Silver is found as a sulphide ore from which it must be possible to extract the silver. A quick search produced the following cyanide method. OK not
ideal but there are probably many other methods too. It may dissolve in hypo particularly easily if its a fine precipitate and perhaps nitric acid.
Try searching quantitative analysis methods for silver.
[Edited on 12/10/2019 by wg48temp9]
I am wg48 but not on my usual pc hence the temp handle.
Thank goodness for Fleming and the fungi.
Old codger' lives matters, wear a mask and help save them.
Be aware of demagoguery, keep your frontal lobes fully engaged.
I don't know who invented mRNA vaccines but they should get a fancy medal and I hope they made a shed load of money from it.
|
|
|
fusso
International Hazard
Posts: 1922
Registered: 23-6-2017
Location: 4 ∥ universes ahead of you
Member Is Offline
|
|
Why not just cremate the shit outta Ag2S?
SO2 will form and escape and pure Ag will remain.
|
|
|
Fleaker
International Hazard
Posts: 1252
Registered: 19-6-2005
Member Is Offline
Mood: nucleophilic
|
|
The Ag2S melts into a matte. Then it can be converted to silver with a piece of iron rod at the melting point of silver.
Could also dissolve the Ag2S in thiosulfate and plate it out, but it never all comes out of solution. Iron rod was always best.
Done it many times.
Neither flask nor beaker.
"Kid, you don't even know just what you don't know. "
--The Dark Lord Sauron
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
