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Gold Coin Dissolving in Acid (Aqua Regia)

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Published on Jul 26, 2012

In this video we dissolve a gold coin in acid.

Warning: This reaction produces toxic gases and handles corrosive acids. It should be performed in a fumehood with gloves.

the 1/20th troy ounce (~1.5g) gold coin is reacted with 10mL of 12M Hydrochloric acid and 1-2mL of 15M Nitric acid. The result is orange chloroauric acid.

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