Potassium Bromide Kbr

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Potassium Bromide Kbr

 

a salt; colorless crystals. Density, 2.75 g/cm3; melting point, 748°C. Solubility, 65.6 g per 100 g H2O at 20°C; 105 g at 100°C.

Potassium bromide is obtained by the reaction of aqueous solutions of potash with iron bromide (II, III): 4K2C03 + Fe3Br8 = 8KBr + Fe3O4 + 4C02. Potassium bromide is used in the preparation of sensitized photographic materials and in medicine.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
Full browser ?