SILVER refining using potassium formate

SILVER refining using potassium formate

WARNING! This video is intended for demonstration purposes only. Trying to duplicate the shown procedures may result in serious injury or even death. Silver reduction from dirty silver nitrate solution using potassium formate. Potassium formate solution was prepared by neutralising formic acid with potassium hydroxide flakes added in small increments. The reaction is EXTREMELY VIGOROUS, producing a lot of heat and steam, that can BLIND, or STRIP FLESH OFF, if you are unprotected. After neutralisation I re-acidified the solution to pH of about 4 I poured the sodium formate solution With the heat on I continued preparing and adding formate to the solution. At some point the reaction started generating its own heat.
Getting more and more violent. Hotplate was turned off but that was not enough and I had to pour part of the solution in another flask, fearing a boil over. With enough headroom I went ahead with the boiling and potassium formate additions. After boiling for some time the solution cleared. A test with saline water confirmed the complete precipitation of silver. The rest of the solution was processed in the same manner. After completing the second precipitation, I combined both drops in a single flask for the washing. Crystal clear rinse water indicates completion of the washing step. Melting. Thanks for watching! Please, don’t forget to like, comment and subscribe below!


  1. ✌привет!Это что специально в грязном смотрел как сработает?По науке замутил😀ни как обычно щолочь,а потом муравьиноя

  2. 👍👍👍👍Спасибо что поделился опытом!Многие люди это ценят!
    С наступающим!

  3. One more useful video. Thank you for sharing your experience with us. Happy New Year and the best wishes to you and your family.

  4. Thank you for this NEW( to me) process for Silver. To the VIEWER'S of Owl Tech's video here. Know this, I have been on You Tube for 12 years and have watched all the refining videos available. There are many great refiners, but Owl has become the home refiners best teacher. He has become a Master Refiner and provides you the best info. Good education lasts a life time. Now where is that donation button for me to smash?

  5. Привет! С Новым годом!!! Слушай а если готовый заводской формиат калия использовать или в видео ты использовал формиат калия + муравьинка(не понял момент) Как всегда лайк!!!

  6. Всех Вас Новым 2019 годом, творческих успехов, Здоровья, и ни меренных
    счастливых успехов!!!, благополучия и выполнения желаний!!! до встречи!

Leave a Reply

Your email address will not be published.