Potassium bromide

Potassium bromide
Identifiers
CAS Number	7758-02-3 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:32030 ;
ChEMBL	ChEMBL1644030 ;
ChemSpider	22854 ;
ECHA InfoCard	100.028.937
PubChem CID	253877;
RTECS number	TS7650000;
UNII	OSD78555ZM ;
CompTox Dashboard (EPA)	DTXSID5025946 ;
	InChI InChI=1S/BrH.K/h1H;/q;+1/p-1 Key: IOLCXVTUBQKXJR-UHFFFAOYSA-M ; InChI=1/BrH.K/h1H;/q;+1/p-1 Key: IOLCXVTUBQKXJR-REWHXWOFAT;
	SMILES [K+].[Br-];
Properties
Chemical formula	KBr
Molar mass	119.002 g/mol
Appearance	white solid
Odor	odorless
Density	2.74 g/cm3
Melting point	734 °C (1,353 °F; 1,007 K)
Boiling point	1,435 °C (2,615 °F; 1,708 K)
Solubility in water	535 g/L (0 °C) ; 678 g/L (25 °C) ; 1020 g/L (100 °C)
Solubility	very slightly soluble in diethyl ether
Solubility in glycerol	217 g/L
Solubility in ethanol	47.6 g/L (80 °C)
Magnetic susceptibility (χ)	−49.1×10−6 cm3/mol
Refractive index (nD)	1.559
Structure
Crystal structure	Sodium chloride(Face-centered cubic)
Coordination geometry	octahedral
Dipole moment	10.41 D (gas)
Pharmacology
ATCvet code	QN03AX91 (WHO)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319
Precautionary statements	P280, P305+P351+P338, P337+P313
NFPA 704 (fire diamond)	1 0 0
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	3070 mg/kg (oral, rat)
Related compounds
Other anions	Potassium fluoride; Potassium chloride; Potassium iodide
Other cations	Lithium bromide; Sodium bromide; Rubidium bromide; Caesium bromide; Francium bromide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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, in 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).

^ "Potassium bromide 221864". Archived from the original on 3 June 2021. Retrieved 1 October 2018.
^ "ChemIDplus — Potassium bromide". chem.sis.nlm.nih.gov. Archived from the original on 12 August 2014. Retrieved 11 August 2014.
^ "Labchem MSDS, sec. 16, p. 6" (PDF). Archived (PDF) from the original on 18 December 2021. Retrieved 27 November 2018.

[1] "Potassium bromide 221864". Archived from the original on 3 June 2021. Retrieved 1 October 2018.

[2] "ChemIDplus — Potassium bromide". chem.sis.nlm.nih.gov. Archived from the original on 12 August 2014. Retrieved 11 August 2014.

[3] "Labchem MSDS, sec. 16, p. 6" (PDF). Archived (PDF) from the original on 18 December 2021. Retrieved 27 November 2018.

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