Gold from the smallest transistors! SMD transistors 5416 pieces!

156,041 views

Франсуа Пелье

Published on Aug 24, 2018
About :

The video shows the process of extracting gold from imported transistors. After removing the solder, roasting and grinding, then sifting and removing excess metal by etching with nitric acid. After washing with water, leaching of gold - with aqua regia, filtering and precipitation - with hydrazine hydrochloride. ZOLOTOY channel: / @zolotoy-161

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