which acid is used to remove sulphide layer on gold.....
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Answer:
acetic acid iz used to remove sulphide from gold
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Answer:
Aqua regia was also used for parting. It was made by adding sal ammoniac to nitric acid which produced a mixture of hydrochloric acid and nitric acid. This acid dissolved the gold to a soluble chloride and the silver was attacked and precipitated as an insoluble chloride.
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