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What is aqua regia?

Question asked by: knowitall

This is Latin for 'royal water', and refers to three parts of concentrated sulphuric acid and one part concentrated nitric acid. It is given this name because it will dissolve every metal, apart from silver.

By: Unknown
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Comments and other answers:

It is a mixture of conc. nitric acid and conc. hydrochloric acid in the ratio 1:3. It reacts with gold to form chloro-auric acid and with platinum to form chloro-platinic acid.
By: psahu63

Date of comment: Wed, Sep 15th 2010

It is a mixyure of nitic acid and hydrochloric acid in the ratio of 1:3
By: rafique

Date of comment: Thu, May 6th 2010

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