Microcosmic salt Meaning, Definition & Usage
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       noun a white salt present in urine and used to test for metal oxides
        
      
 
WordNet
Definitions
- (Chem.) , a white crystalline substance obtained by mixing solutions of sodium phosphate and ammonium phosphate, and also called hydric-sodic-ammonic-phosphate. It is a powerful flux, and is used as a substitute for borax as a blowpipe reagent in testing for the metallic oxides. Originally obtained by the alchemists from human urine, and called sal microcosmicum.
Definitions
- . (Chem.) . See underMicrocosmic .