Potassium iodate
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| Potassium iodate | |
|---|---|
| IUPAC name | potassium iodate |
| Identifiers | |
| InChI | InChI=1/HIO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1 |
| InChIKey | JLKDVMWYMMLWTI-REWHXWOFAL |
| Standard InChI | InChI=1S/HIO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1 |
| Standard InChIKey | JLKDVMWYMMLWTI-UHFFFAOYSA-M |
| CAS number | [] |
| ChemSpider | |
| Properties[1] | |
| Chemical formula | KIO3 |
| Molar mass | 214.00 g mol−1 |
| Appearance | white crystals |
| Density | 3.93 g cm−3 |
| Solubility in water | 4.74 g/100 ml (0 °C) |
| Structure[2] | |
| Space group | P1 (No. 1) |
| Lattice constant | a = 769.82(4) pm, b = 765.97(2) pm, c = 769.12(5) pm, α = 108.999(5)°, β = 109.745(2)°, γ = 109.085(5)° |
| Hazards[3] | |
| EU index number | not listed |
| GHS pictograms |  
|
| GHS signal word | DANGER |
| GHS hazard statements | H272, H302 |
| GHS precautionary statements | P210, P220, P221, P264, P270, P280, P301+312, P330, P370+378, P501 |
| Flash point | Non-flammable |
| Related compounds | |
| Other anions | Potassium iodide Potassium periodate |
| Other cations | Lithium iodate Sodium iodate Rubidium iodate Caesium iodate |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Potassium iodate, KIO3, is a common iodine compound. It is used for the prophylaxis of iodine deficiency, in radiological protection and in analytical chemistry. It has also been used as a flour treatment agent, although this is no longer recommended.
Notes and references
Notes
References
- ↑ CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; pp B-133, B-134. ISBN 0-8493-0462-8.
- ↑ Lucas, B. W. Structure (neutron) of potassium iodate at 100 and 10 K. Acta Crystallogr. 1985, C41, 1388–91. DOI: 10.1107/S0108270185007880.
- ↑ HSNO Chemical Classification Information Database, <http://www.ermanz.govt.nz/Chemicals/ChemicalDisplay.aspx?SubstanceID=1913> (accessed 9 September 2010), New Zealand Environmental Risk Management Authority.
External links
 |
See also the corresponding article on Wikipedia. |
- FAO/WHO Joint Expert Committee on Food Additives (JECFA) evaluation (summary): Potassium iodate
- FAO/WHO Joint Expert Committee on Food Additives (JECFA) monograph: Iodine (WHO Food Additives Series 24)
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