Gold extraction from Aqua Regia /How to properly extract gold from aqua regia

Hello Friends
In this video I show you how to convert 22 carat gold to 24 carat with aqua regia.
This video is for those who don't know about the power of aqua regia
The ratio of aqua regia is 100 mL of hydrochloric acid to 30 mL of nitric acid.
Hydrochloric acid 33% Nitric acid 72%
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