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Rochelle salt
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noun Chemistry, Pharmacology.
a colorless or white, water-soluble solid, KNaC4H4O6⋅4H2O, used in silvering mirrors, in the manufacture of Seidlitz powders and baking powder, and in medicine as a laxative.
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Also called potassium sodium tartrate.
Origin of Rochelle salt
First recorded in 1745–55; after La Rochelle
Words nearby Rochelle salt
roche alum, Roche limit, Rochelle, Rochelle powder, Rochelle powders, Rochelle salt, roche moutonnée, Rochester, rochet, rock, rockabilly
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use Rochelle salt in a sentence
British Dictionary definitions for Rochelle salt
Rochelle salt
noun
a white crystalline double salt, sodium potassium tartrate, used in Seidlitz powder. Formula: KNaC 4 H 4 O 6 .4H 2 O
Word Origin for Rochelle salt
C18: named after La Rochelle, French port
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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