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Meaning of Rochelle salt

Rochelle' salt"

Pronunciation: [key]
— Chem., Pharm. Chem.,Pharm.
  1. a colorless or white, water-soluble solid, KNaCHO&multiplydot;4HO, used in silvering mirrors, in the manufacture of Seidlitz powders and baking powder, and in medicine as a laxative. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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