No passwords, No popups, No AI, No cost:
we earn from your affiliate purchases

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
ted_yosem
Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
finishing.com -- The Home Page of the Finishing Industry


  pub
  The authoritative public forum
  for Metal Finishing since 1989

-----

Extraction of silver from silver nitrate liquid




Q. Dear sir,
I am from Kochin. I have approximately 10 liters of AgNo3 from lab waste. Can you tell me how can I separate the silver from this liquid? I need a simple method. Sir ,I am very much interested in extraction methods.
Regards,

RENJITH RAVI
Student - Kochin , Kerala, India
August 25, 2008


A. Add a MORE reactive metal to the AgNO3. This will dissolve in the solution and precipitate out silver metal. A copper strip is a good pick, because the silver will form little needles on the strip. You can then brush the silver off.

Jason Rothman, Chemist
- Pomona, California, USA
September 6, 2008


Q. Dear sir,

I need your wise answer to my question here. I did try several coppers to extract silver from the liquid which contains silver and copper. But not all the copper that you mention can extract the silver. Why?

Lee Pat
- Kuala Lumpur, Malaysia
June 2, 2013



similarly



similarly
June 2013

A. Hi Lee. How do you know whether there is silver left?
Regards,
Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey



Dear Sir,
Yes, I'm absolutely, totally, precisely sure because I had used nitric acid to dilute the metal and sent the liquid for a lab test. The mixture approximately contains 25% of silver and 70% of copper. How come?
Lee pat
- kuala lumpur, Malaysia
June 6, 2013



June 2013
Ok, that's good then Lee. I asked because several of our visitors asked what was wrong with their extraction technique when they weren't able to recover as much silver as they expected from the film developing solutions they had purchased. They had been misled and the solution simply contained far less silver than they had been led to believe :-)
Regards,
Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey



A. Use steel wool this on eBay or Amazon [affil links] . Cheaper than copper and works well.
Remove any remaining steel with sulfuric or hydrochloric acid (nitric would dissolve the silver) and wash before melting or you will form alloys.
You will find copper much more difficult to completely remove.

geoff smith
Geoff Smith
Hampshire, England
June 10, 2013




Q. I am new to scrap silver collecting. I am not trying to get rich, but just starting a new hobby.
I know you can dissolve silver in a nitric acid solution. Then strain and dilute the solution. Using copper or wire wool you can recover the silver, but can you recover the other metals from the dissolved solution, such as copper or gold? (Example silver plated copper or gold plated silver).

Jeanette Theisen
- Clare, Michigan, USA
June 8, 2013



Q. Dear Sir

I tried steel wool but I didn't see any reaction at all. The crucible contains 75% of copper and 25% of silver. Sir do you have other alternative ways to solve my situation? Because the crucible is high of copper and the above method really didn't help to extraction of silver.

By the way, material are not from x-ray film or any computer parts unlike the rest of the people doing. My sources are from metal ore.

Thank you

Lee Pat
- Kuala Lumpur, Malaysia
June 18, 2013


A. Hi.
You had silver nitrate solution. You add sodium chloride or hydrochloric acid to precipitate silver chloride. Then reduce AgCl using washer (iron content). You will get cement silver.

Bhupesh Mulik
jewellery - Mumbai, Maharashtra, India
July 8, 2013




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"