Dear Sir. Concerning your issue about the extraction of silver from silver nitrate . The easiest way to extract silver - quantitatively - from silver nitrate solution, is simply adding sodium chloride (table salt) solution. Silver chloride will precipitate and is quite easily decanted and/or filtered. This is probably what they wanted in the first place for you to do. To reduce silver chloride into metallic form is much more complicated. You might wash and wash and wash again the precipitate, then make the reduction with sodium hydroxide and formaldehyde. I do not recommend this to anyone because of the toxicity of formaldehyde. One easy way is to mix the washed silver chloride into photographic fixer and then electrolyze using graphite anode and stainless steel cathode, to produce silver of 94 to 99% purity. I think the following below links may help you in your analysis:

https://www.finishing.com/266/13.shtml

https://www.sciencedirect.com/science/article/pii/0376738893E01357

https://scholarsmine.mst.edu/cgi/viewcontent.cgi?article=5832&context=masters_theses

http://infohouse.p2ric.org/ref/30/29904.pdf

Thanks

What will be the amount of reactants being used for silver nitrate and sodium chloride?

You can reduce the Ag+ to metallic Ag using hydrogen gas.

Article The Reduction of AgNO3 in Aqueous Solutions by Atomic Hydrogen

regards,

G

Hi, Rakesh,

If you are willing to get metallic pure silver I think the best way is to make its electrodeposition and after that you melt the metal.

Below a google search about it.

Silver Electrodeposition from AgNO3 Solutions Containing Organic ...

https://link.springer.com/article/10.../B:JACH.0000021920.59845...

Traduzir esta páginade GM Zarkadas - ‎2004 - ‎Citado por 18 - ‎Artigos relacionadosThe electrodeposition of silver at 25 °C from AgNO3/tartaric acid solutions in binary water–methanol solvent systems was investigated. This study shows that it is ...

Electroless and Electrodeposition of Silver - Schlesinger - - Wiley ...

https://onlinelibrary.wiley.com/doi/pdf/10.../9780470602638.ch5

Traduzir esta páginade M Schlesinger - ‎Citado por 23 - ‎Artigos relacionados24 de fev de 2011 - Summary. This chapter contains sections titled: Electroless Deposition.Electrodeposition. References. Citing Literature ...

Influence of citric acid on the silver electrodeposition from aqueous ...

https://www.sciencedirect.com/science/.../S0013468605005554 - Traduzir esta páginade GM Zarkadas - ‎2005 - ‎Citado por 47 - ‎Artigos relacionados5 de set de 2005 - The electrodeposition of silver at 25 °C from aqueous AgNO3+ citric acid solutions was investigated. This study shows that it is possible to ...

Silver electrodeposition on nanostructured gold: from nanodots to ...

iopscience.iop.org/article/10.1088/0957-4484/17/14/014/meta - Traduzir esta páginade PC dos Santos Claro - ‎2006 - ‎Citado por 6 - ‎Artigos relacionadosSilver electrodeposition on nanostructured gold: from nanodots to nanoripples. P C dos Santos Claro1, M Fonticelli1, G Benítez1, O Azzaroni1, P L Schilardi1, ...

A Combined Theoretical and Experimental Study for Silver Electroplating

https://www.nature.com/articles/srep03837 - Traduzir esta páginade A Liu - ‎2014 - ‎Citado por 16 - ‎Artigos relacionados23 de jan de 2014 - A novel method combined theoretical and experimental study for environmental friendly silver electroplating was introduced. Quantum ...‎Introduction · ‎Results and discussion · ‎Methods · ‎References

Scaling of Roughness in Silver Electrodeposition - Journal of The ...

jes.ecsdl.org/content/150/6/C375.full.pdf - Traduzir esta páginade DG Foster - ‎2003 - ‎Citado por 29 - ‎Artigos relacionadosThe electrodeposition of silver from thiosulfate solutions and its surface roughness are studied using scaling methods. Although silver electrodeposition from ...

Scaling of Roughness in Silver Electrodeposition

jes.ecsdl.org/content/150/6/C375.short - Traduzir esta páginade DG Foster - ‎2003 - ‎Citado por 29 - ‎Artigos relacionados10 de abr de 2003 - Abstract. The electrodeposition of silver from thiosulfate solutions and its surface roughness are studied using scaling methods. Although silver ...

The Electrodeposition of Silver from Solutions of Silver Nitrate in ... - Jstor

https://www.jstor.org/stable/3624944

Traduzir esta páginade R Taft - ‎1943 - ‎Citado por 2 - ‎Artigos relacionadosThe electrolytic deposition of silver from a neutral solution of silver nitrate .... electrodeposition ofsilver in the presence of wetting agents. 'No change in crystal ...

Cyclic Voltammetric Study of High Speed Silver Electrodeposition and ...

https://www.hindawi.com/journals/ijelc/2016/4318178/

Traduzir esta páginade B Zheng - ‎2016 - ‎Citado por 1 - ‎Artigos relacionados12 de mai de 2016 - Silver coatings electrodeposited using cyanide-based solutions have existed for more than one century. Cyanide has played an important role ...

Thank you, Jorge!

I did in lab for

Synthesis of Silver Nanoparticles

The synthesis of silver (Ag) nanoparticles using sodium borohydride (NaBH4) as a reducing agent with silver nitrate, AgNO3. The aqueous solution of NaBH4 is used to reduce and stabilize the silver nanoparticles. The aqueous solution of 0.001M silver nitrate was added drop-wise (about one drop per second) to the aqueous solution of 30 mL of 0.002 M sodium borohydride solution (NaBH4) that had been chilled in an ice bath. The NaBH4 has been chilled in an ice bath for 15 minutes to achieve the temp of 0oC. The reaction mixture of AgNO3 and NaBH4 was stirred vigorously on a magnetic stirrer till the solution color turned to light yellow. The drop by drop addition of silver nitrate to NaBH4 change color of the solution to brighter yellow and brighter to dark yellow or yellow-brown color due to excitation of surface plasmon vibrations in silver nanoparticles when all of the silver nitrates had been added.

AgNO3 + NaBH4 → Ag + H2+ B2H6 + NaNO3