Calcium iodate

Calcium iodate
IUPAC name Calcium diiodate
Other names Lautarite
Identifiers
CAS number	40563-56-2 Y, (anhydrous) 7789-80-2 (monohydrate)
PubChem	24619
ChemSpider	23021 Y
EC-number	232-191-3
Jmol-3D images	Image 1
SMILES [Ca+2].[O-]I(=O)=O.[O-]I(=O)=O
InChI InChI=1S/Ca.2HIO3/c;2*2-1(3)4/h;2*(H,2,3,4)/q+2;;/p-2 Y Key: UHWJJLGTKIWIJO-UHFFFAOYSA-L Y InChI=1/Ca.2HIO3/c;2*2-1(3)4/h;2*(H,2,3,4)/q+2;;/p-2 Key: UHWJJLGTKIWIJO-NUQVWONBAT
Properties
Molecular formula	Ca(IO3)2
Molar mass	389.88 g/mol (anhydrous) 407.90 g/mol (monohydrate)
Exact mass	389.741015
Appearance	white solid
Density	4.519 g/cm3 (monohydrate)
Melting point	540 °C (monohydrate)
Boiling point	decomposes
Solubility in water	0.09 g/100 mL (0 °C) 0.24 g/100 mL (20 °C) 0.67 g/100 mL (90 °C)
Solubility	soluble in nitric acid insoluble in alcohol
Structure
Crystal structure	monoclinic (anhydrous) cubic (monohydrate) orthorhombic (hexahydrate)
Hazards
EU Index	not listed
Flash point	non-flammable
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Calcium iodate (also called lautarite) is a compound of calcium and iodate anion. Its formula is Ca(IO₃)₂. It is used as a dough conditioner. Calcium iodate is an oxidant added to lotions and ointments as an antiseptic and deodorant. It may be formed by the anodic oxidation of calcium iodide or by passing chlorine into a hot solution of lime in which iodine has been dissloved. Also can be used in chicken feed as a supplement.