Definition of microcosmic salt in English:

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microcosmic salt

noun

[mass noun] Chemistry
A white crystalline salt obtained from human urine.
  • Hydrated sodium ammonium hydrogen phosphate; chemical formula: HNaNH4PO4.4H2O
Example sentences
  • However Dalton did make some contributions on microcosmic salt and on a new method of analysing sugar.
  • The fluorine in this mineral was not certainly recognized by the blowpipe test, using a flux of microcosmic salt, the well-known etching-power of phosphoric acid itself standing in the way of this.
  • A test similar to the borax bead test is often made using microcosmic salt.

Origin

Late 18th century: translating Latin sal microcosmicus.

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