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white precipitate

noun

Definition of white precipitate 

: either of two mercury-ammonia compounds:

a : ammoniated mercury

b : a crystalline compound Hg(NH3)2Cl2 usually obtained by adding a solution of mercuric chloride to a hot solution of ammonia and ammonium chloride

— called also fusible white precipitate

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First Known Use of white precipitate

1588, in the meaning defined above

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The first known use of white precipitate was in 1588

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