Difference between revisions of "Potassium biiodate"

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| Section7 = {{Chembox Hazards
 
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|  Reference = <ref>{{GHS class NZ|id=1913|accessdate=2010-09-09}}.</ref><ref>{{GHS class NZ|id=12620|accessdate=2010-09-09}}.</ref><ref group="Note">Hazards were assessed as for an equimolar mixture of [[potassium iodate]] and [[iodic acid]].</ref>
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|  Reference = <ref>{{GHS class NZ|id=1913|accessdate=2010-09-09}}. (potassium iodate)</ref><ref>{{GHS class NZ|id=12620|accessdate=2010-09-09}}. (iodic acid)</ref><ref group="Note">Hazards were assessed as for an equimolar mixture of [[potassium iodate]] and [[iodic acid]].</ref>
 
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'''Potassium biiodate''', KH(IO<sub>3</sub>)<sub>2</sub>, is a [[primary standard]] [[strong acid]] in [[analytical chemistry]].
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'''Potassium biiodate''', KH(IO<sub>3</sub>)<sub>2</sub>, is a [[primary standard]] [[strong acid]] in [[analytical chemistry]].<ref>{{citation | title = The Use of Potassium Bi-iodate as a Standard Substance in Alkalimetric and Iodimetric Titrations | first1 = I. M. | last1 = Kolthoff | first2 = L. H. | last2 = van Berk | journal = J. Am. Chem. Soc. | year = 1926 | volume = 48 | issue = 11 | pages = 2799–2801 | doi = 10.1021/ja01690a006}}.</ref><ref>{{citation | title = Processing KODAK Motion Picture Films, Module 4 – Potassium Biiodate | url = http://motion.kodak.com/motion/uploadedFiles/US_plugins_acrobat_en_motion_support_processing_h244_potBiiod.pdf | publisher = Kodak | accessdate = 2010-09-09}}.</ref>
  
 
==Notes and references==
 
==Notes and references==

Revision as of 18:12, 9 September 2010

Potassium biiodate
IUPAC name potassium µ-hydridobis(trioxidoiodate)(1−)
Other names potassium hydrogen iodate
Identifiers
InChI InChI=1/2HIO3.K/c2*2-1(3)4;/h2*(H,2,3,4);/q;;+1/p-1
InChIKey ACAYDTMSDROWHW-REWHXWOFAC
Standard InChI InChI=1S/2HIO3.K/c2*2-1(3)4;/h2*(H,2,3,4);/q;;+1/p-1
Standard InChIKey ACAYDTMSDROWHW-UHFFFAOYSA-M
CAS number [13455-24-8]
EC number 236-650-9
ChemSpider 2341255
Properties[1]
Chemical formula KH(IO3)2
Molar mass 389.91 g mol−1
Appearance white crystals
Solubility in water 1.33 g/100 ml (15 °C)
Hazards[2][3][Note 1]
EU index number not listed
GHS pictograms Skin Corr. 1C, Eye Dam. 1Ox. Sol. 2Acute Tox. 4 (oral)
GHS signal word DANGER
GHS hazard statements H272, H302, H314, H318
GHS precautionary statements P210, P220, P221, P260, P264, P270, P280, P301+312, P301+330+331, P303+361+353, P363, P304+340, P310, P321
Flash point Non-flammable
Related compounds
Other compounds Potassium iodate
Iodic acid
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Potassium biiodate, KH(IO3)2, is a primary standard strong acid in analytical chemistry.[4][5]

Notes and references

Notes

  1. Hazards were assessed as for an equimolar mixture of potassium iodate and iodic acid.

References

  1. CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-133. ISBN 0-8493-0462-8.
  2. 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. (potassium iodate)
  3. HSNO Chemical Classification Information Database, <http://www.ermanz.govt.nz/Chemicals/ChemicalDisplay.aspx?SubstanceID=12620> (accessed 9 September 2010), New Zealand Environmental Risk Management Authority. (iodic acid)
  4. Kolthoff, I. M.; van Berk, L. H. The Use of Potassium Bi-iodate as a Standard Substance in Alkalimetric and Iodimetric Titrations. J. Am. Chem. Soc. 1926, 48 (11), 2799–2801. DOI: 10.1021/ja01690a006.
  5. Processing KODAK Motion Picture Films, Module 4 – Potassium Biiodate; Kodak, <http://motion.kodak.com/motion/uploadedFiles/US_plugins_acrobat_en_motion_support_processing_h244_potBiiod.pdf>. (accessed 9 September 2010).