Calcium bromate

Chemical compound From Wikipedia, the free encyclopedia

Calcium bromate, Ca(BrO3)2, is a calcium salt of bromic acid. It is most commonly encountered as the monohydrate, Ca(BrO3)2•H2O.[citation needed]

Quick facts Names, Identifiers ...
Calcium bromate
Names
IUPAC name
Calcium bromate
Other names
bromic acid, calcium salt
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.240 Edit this at Wikidata
EC Number
  • 233-278-9
E number E924b (glazing agents, ...)
UNII
  • InChI=1S/2BrHO3.Ca/c2*2-1(3)4;/h2*(H,2,3,4);/q;;+2/p-2 checkY
    Key: GROPHIUSZODNGU-UHFFFAOYSA-L checkY
  • InChI=1/2BrHO3.Ca/c2*2-1(3)4;/h2*(H,2,3,4);/q;;+2/p-2
    Key: GROPHIUSZODNGU-NUQVWONBAH
  • [Ca+2].[O-]Br(=O)=O.[O-]Br(=O)=O
Properties
Ca(BrO3)2
Molar mass 295.8824 g/mol
Appearance White monoclinic crystals
Density 3.33 g/cm3[1]
Melting point 180 °C[2]
230 g/100 mL (20 °C)
−84.0·10−6 cm3/mol
Hazards
GHS labelling:
GHS03: OxidizingGHS07: Exclamation mark
Danger
H272, H315, H319, H335
P210, P220, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P405, P501
Related compounds
Other anions
calcium bromide
calcium chloride
calcium sulfide
Other cations
strontium bromate
barium bromate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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It can be prepared by reacting calcium hydroxide with sodium bromate or calcium sulfate with barium bromate. Above 180 °C, calcium bromate decomposes to form calcium bromide and oxygen.[citation needed] In theory, electrolysis of calcium bromide solution will also yield calcium bromate.

It is used as a bread dough and flour "improver" or conditioner (E number E924b) in some countries.[3]

References

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