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Definition of Microcosmic salt
1. Noun. A white salt present in urine and used to test for metal oxides.
Generic synonyms: Salt
Definition of Microcosmic salt
1. Noun. (dated chemistry) A white salt, extracted from urine; once used in the preparation of phosphorus, and used in analytical tests for some metals; ammonium sodium hydrogenphosphate (NH4)NaHPO4. ¹
¹ Source: wiktionary.com