Barium iodate

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Barium iodate is an inorganic chemical compound with the chemical formula Ba(IO3)2. It is a white, granular substance.

Barium iodate

Unit cell

Identifiers

CAS Number

  • 10567-69-8 check

3D model (JSmol)

  • Interactive image
ChemSpider
  • 145385
ECHA InfoCard 100.031.035

PubChem CID

  • 165892
UNII
  • ST2993NJ5J check

CompTox Dashboard (EPA)

  • DTXSID70909677

InChI

  • InChI=1S/Ba.2HIO3/c;2*2-1(3)4/h;2*(H,2,3,4)/q+2;;/p-2

    Key: GASILTKHXWGKMG-UHFFFAOYSA-L

  • InChI=1/Ba.2HIO3/c;2*2-1(3)4/h;2*(H,2,3,4)/q+2;;/p-2

    Key: GASILTKHXWGKMG-NUQVWONBAR

SMILES

  • [Ba+2].[O-]I(=O)=O.[O-]I(=O)=O

Properties

Chemical formula

Ba(IO3)2
Molar mass 487.13 g/mol
Melting point 580 °C (1,076 °F; 853 K)(decomposes)

Solubility product (Ksp)

1.57 × 10−9[1]

Magnetic susceptibility (χ)

−122.5·10−6 cm3/mol

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Barium iodate can be derived either as a product of a reaction of iodine and barium hydroxide or by combining barium chlorate with potassium iodate.[2]

The compound is stable on a temperature up to approximately 580 °C (1,076 °F). If the temperature is higher than that value, the following reaction, known as Rammelsberg's reaction, occurs:[3]

5 Ba(IO3)2 → Ba5(IO6)2 + 9 O2 + 4 I2
  • Definition of Insoluble salts (precipitates); Solubility product