What is Potassium Bromide (KBr)? Where to Buy Potassium Bromide (KBr)? Buy High-Purity Potassium Bromide (KBr). Potassium Bromide (KBr) Price and Availability. Technical Specifications of Potassium Bromide (KBr)

KBr 

Potassium bromide (KBr) is a salt, widely used as an anticonvulsant and a sedative in the late 19th and early 20th centuries, with over-the-counter use extending to 1975 in the US. Its action is due to the bromide ion (sodium bromide is equally effective). Potassium bromide is used as a veterinary drug, as an antiepileptic medication for dogs.

Under standard conditions, potassium bromide is a white crystalline powder. It is freely soluble in water; it is not soluble in acetonitrile. In a dilute aqueous solution, potassium bromide tastes sweet, at higher concentrations it tastes bitter, and tastes salty when the concentration is even higher. These effects are mainly due to the properties of the potassium ion—sodium bromide tastes salty at any concentration. In high concentration, potassium bromide strongly irritates the gastric mucous membrane, causing nausea and sometimes vomiting (a typical effect of all soluble potassium salts)

Main applications

1. Infrared spectroscopy: widely used in IR spectroscopy.

2. Photography: used in photographic emulsions because it participates in the formation of silver bromide (AgBr), which is a light-sensitive material.  It improves differentiation between exposed and unexposed crystals of silver halide, and thus reduces fog.

3. Medicine: Potassium bromide has been used as a sedative, anti-epileptic drug

4. Optical materials: used for optical windows, infrared detectors

Formula: KBr
Molecular Weight: 119.002 g/mol
Form: powder
CAS Number: 7758-02-3
EC Number: 231-830-3
Density: 2.75 g/cm³
Synonyms: Kalii bromidum, Caswell No. 684, Kaliumbromid, Psorizide forte