Barium iodate

Barium iodate
Crystal structure
Unit cell
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.035 Edit this at Wikidata
UNII
  • 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
  • [Ba+2].[O-]I(=O)=O.[O-]I(=O)=O
Properties
Ba(IO3)2
Molar mass 487.13 g/mol
Melting point 580 °C (1,076 °F; 853 K)(decomposes)
1.57 × 10−9[1]
-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).

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

Derivation

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]

Chemical properties

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

References

  1. ^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99th ed.). CRC Press. pp. 4–47. ISBN 978-1138561632.
  2. ^ Mellor (1973). Melorova moderna neorganska hemija. Belgrade: Naučna knjiga.
  3. ^ H. Stern, Kurt (2000). High temperature properties and thermal decomposition of inorganic salts. Taylor & Francis. ISBN 0849302560. Retrieved November 1, 2013.


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