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Calcium bromate

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Calcium bromate
Names
IUPAC name Calcium bromate
Other names bromic acid, calcium salt
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.240 Edit this at Wikidata
EC Number
  • 233-278-9
E number E924b (glazing agents, ...)
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/2BrHO3.Ca/c2*2-1(3)4;/h2*(H,2,3,4);/q;;+2/p-2Key: GROPHIUSZODNGU-UHFFFAOYSA-L
  • InChI=1/2BrHO3.Ca/c2*2-1(3)4;/h2*(H,2,3,4);/q;;+2/p-2Key: GROPHIUSZODNGU-NUQVWONBAH
SMILES
  • .Br(=O)=O.Br(=O)=O
Properties
Chemical formula Ca(BrO3)2
Molar mass 295.8824 g/mol
Appearance White monoclinic crystals
Density 3.33 g/cm
Melting point 180 °C
Solubility in water 230 g/100 mL (20 °C)
Magnetic susceptibility (χ) -84.0·10 cm/mol
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 , 100 kPa). ☒N verify (what is  ?) Infobox references
Chemical compound

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

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. 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.

References

  1. "Public Health Goal for Bromate in Drinking Water" (PDF). Office of Environmental Health Hazard Assessment, California Environmental Protection Agency. December 2009. Retrieved August 21, 2018.
  2. Perry, Dale L (2016-04-19). Handbook of Inorganic Compounds, Second Edition. ISBN 9781439814628.
  3. Lewis, Richard J (1989). Food Additives Handbook. Springer Science & Business Media. ISBN 9780442205089.
Calcium compounds
Hydrogen & halogens
Chalcogens
Pnictogens
Group 13 & 14
Trans metals
Organics
Compounds containing the bromate group
HBrO3 He
Li Be B C N O F Ne
NaBrO3 Mg Al Si P S Cl Ar
KBrO3 Ca(BrO3)2 Sc(BrO3)3 Ti V Cr Mn(BrO3)2 Fe(BrO3)3 Co(BrO3)2 Ni(BrO3)2 Cu(BrO3)2 Zn(BrO3)2 Ga Ge As Se Br2O3
Br2O5 		Kr
RbBrO3 Sr(BrO3)2 Y(BrO3)3 Zr Nb Mo Tc Ru Rh Pd AgBrO3 Cd In Sn Sb Te I Xe
Cs Ba(BrO3)2 * Lu(BrO3)3 Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra ** Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
 
* La(BrO3)3 Ce(BrO3)3 Pr(BrO3)3 Nd(BrO3)3 Pm(BrO3)3 Sm(BrO3)3 Eu(BrO3)3 Gd(BrO3)3 Tb(BrO3)3 Dy(BrO3)3 Ho(BrO3)3 Er(BrO3)3 Tm(BrO3)3 Yb(BrO3)3
** Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No


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