potassium bromide

American  

noun

Chemistry.

1. a white, crystalline, water-soluble powder, KBr, having a bitter saline taste: used chiefly in the manufacture of photographic papers and plates, in engraving, and in medicine as a sedative.

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potassium bromide British  

noun

1. a white crystalline soluble substance with a bitter saline taste used in making photographic papers and plates and in medicine as a sedative. Formula: KBr

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Etymology

Origin of potassium bromide

First recorded in 1870–75

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Example Sentences

See Examples For:

potassium bromide

Some bromide salts, notably potassium bromide, were found to be natural sedatives, and were prescribed in the 19th Century as a remedy for epilepsy.

From BBC ● Sep. 26, 2014

Thorpe and Laurie converted potassium auribromide into a mixture of metallic gold and potassium bromide by careful heating.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" by Various

Any uncondensed bromine vapour is absorbed by moist iron borings, and the resulting iron bromide is used for the manufacture of potassium bromide.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various

The usual method is to condemn vigorously the use of potassium bromide, and substitute ammonium or sodium bromide for it.

From Epilepsy, Hysteria, and Neurasthenia Their Causes, Symptoms, & Treatment by Isaac George Briggs

We therefore conclude, that either the niter or the small excess of potassium bromide, or both together, produce the change.

From Scientific American Supplement, No. 384, May 12, 1883 by Various

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