microcosmic salt

American  

noun

Chemistry.

1. sodium ammonium phosphate.

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microcosmic salt British  

noun

1. a white soluble solid obtained from human urine; ammonium sodium hydrogen phosphate. It is used as a flux in bead tests on metal oxides

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Etymology

Origin of microcosmic salt

First recorded in 1775–85

Example Sentences

Gives the chlorine reaction with microcosmic salt and CuO.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

With microcosmic salt, the same reactions are produced.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

Iodides.—Iodides are treated, as the bromides and chlorides, in a bead of microcosmic salt with oxide of copper.

From The Elements of Blowpipe Analysis by Getman, Frederick Hutton

Olivine Some varieties give off fluorine, when fused with microcosmic salt.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

The angular concretions to the sides of the pot, formed as the urine cools, is microcosmic salt.

From Zoonomia, Vol. II Or, the Laws of Organic Life by Darwin, Erasmus