Bromic acid

Structural formula
General
Surname	Bromic acid
other names	Bromine (V) acid
Molecular formula	HBrO 3
Brief description	colorless liquid stable only as an aqueous solution
External identifiers / databases
CAS number 7789-31-3 EC number 232-158-3 ECHA InfoCard 100.029.235 PubChem 24445 Wikidata Q411320
properties
Molar mass	128.91 g mol −1
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 .

Bromic acid is a chemical compound of the elements bromine , oxygen and hydrogen with the formula HBrO ₃ . Their salts are the bromates .

Extraction and presentation

They can be represented by reacting barium bromate with dilute sulfuric acid . The barium sulfate , which is sparingly soluble, precipitates out and the bromic acid remains in solution.

${\displaystyle \mathrm {Ba(BrO_{3})_{2}+H_{2}SO_{4}\longrightarrow BaSO_{4}\downarrow +\ 2\ HBrO_{3}} }$

properties

It belongs to the halogenated oxygen acids and is related to chloric acid and iodic acid and, like these, has a pyramidal structure. It is a strong oxidizing agent and is therefore used for redox titrations. It is also important in Belousov-Zhabotinsky reactions .

Bromic acid is not a very stable acid and can only be represented in an aqueous solution. From a content of 50%, decomposition occurs:

${\displaystyle \mathrm {4\ HBrO_{3}\longrightarrow 2\ Br_{2}+5\ O_{2}+2\ H_{2}O} }$

Individual evidence

1. ↑ Entry on bromic acid. In: Römpp Online . Georg Thieme Verlag, accessed on September 29, 2014.
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
3. ↑ G. Brauer (Ed.), Handbook of Preparative Inorganic Chemistry 2nd ed., Vol. 1, Academic Press 1963, pp. 315-6.
4. ↑ University of Kiel: Lecture notes on bromine and bromine compounds ( memento of the original from September 29, 2007 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 87 kB).