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Rochelle salt
noun
, Chemistry, Pharmacology.
- a colorless or white, water-soluble solid, KNaC 4 H 4 O 6 ⋅4H 2 O, used in silvering mirrors, in the manufacture of Seidlitz powders and baking powder, and in medicine as a laxative.
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
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Word History and Origins
Origin of Rochelle salt1
First recorded in 1745–55; after La Rochelle
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Word History and Origins
Origin of Rochelle salt1
C18: named after La Rochelle , French port
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Example Sentences
In using the baking powder prepared according to my formula, you have in your bread Glauber instead of Rochelle salts.
From Project Gutenberg
This acid, united to the mineral alkali, makes Rochelle salt.
From Project Gutenberg
Rochelle salts and seltzer aperient are given dissolved in water; the ordinary dose is from one to four teaspoonfuls.
From Project Gutenberg
Itching often disappears after a good saline cathartic has acted—Rochelle salts, solution of magnesia citrate, or phosphate of soda.
From Project Gutenberg
In another vessel dissolve pure Rochelle salt to the amount of 2.6 w, and make up the solution to the volume v.
From Project Gutenberg
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