Hope you like our compilation, please share it and SUBSCRIBE! Watch also our other videos! youtube Subscribe to this ►► ✔️ THANK YOU ✔️ how to handle the remaining chemical water From gold extraction Recycle gold Refinery Refining Gold. Urea, also called carbamide, is soluble in water and alcohol and is non-combustible. In gold recovery processes, it is used as a neutralizer of excess nitric acid in aqua regia solutions. Sodium metabisulfite is commonly used to precipitate dissolved go
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