Potassium perbromate

Crystal structure
__ K +      __ Br 7+      __ O 2−
General
Surname	Potassium perbromate
Ratio formula	KBrO 4
Brief description	colorless solid
External identifiers / databases
CAS number 22207-96-1 Wikidata Q4348807
properties
Molar mass	181.86 g mol −1
Physical state	firmly
density	3.08 g cm −3
safety instructions
GHS hazard labeling no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Potassium perbromate is an inorganic chemical compound of potassium from the group of perbromates .

Extraction and presentation

Potassium perbromate can be obtained by reacting perbromic acid with potassium hydroxide .

${\displaystyle \mathrm {HBrO_{4}+KOH\longrightarrow KBrO_{4}+H_{2}O} }$

properties

Potassium perbromate is a colorless crystalline solid that decomposes in two stages. At around 275 ° C, potassium bromate and oxygen are formed first, and then at around 390 ° C, potassium bromide and oxygen are produced. In the case of impure products, these can partially decompose even at lower temperatures. It has an orthorhombic crystal structure with the space group Pnma (space group no. 62) and the lattice parameters a = 8.930 Å , b = 5.921 Å and c = 7.488 Å.

Individual evidence

1. ↑ ^{a b c d} Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 333.
2. ^ ^{A b} Stanley Siegel, Benjamin Tani, Evan Appelman: Crystal structure of potassium perbromate. In: Inorganic Chemistry. 8, 1969, pp. 1190-1191, doi : 10.1021 / ic50075a036 .
3. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.