21,605 views
✔ Laboratory glassware http://got.by/4lts3l ✔ Affiliate link http://got.by/4mj85k ✔ Email for communication [email protected] ====================================================================== ????Support the channel: ✔ https://donatua.com/@dipal ✔ https://new.donatepay.ru/@dipal ✔ BTC 1DipaLJWYLaaBWzEwqojQrYUPwnCzRC8FA =================================================================== Gold refining. Gold dissolution without hydrochloric acid, ammonium chloride + nitric acid. Gold precipitation with hydrazine hydrate. In the video I used concentrated nitric acid and ammonium chloride. Subscribe to the channel, ask questions and put your thumbs up. Thank you very much for watching! ???? Likecoin – cryptocurrency for likes: https://likecoin.pro/@dipal/gpk1/xnd5 ???? Email [email protected] Gold refining. Gold dissolution without hydrochloric acid, ammonium chloride + nitric acid. Gold precipitation with hydrazine hydrate Subscribe to the channel, ask questions and put your thumbs up. Thanks so much for watching!