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Potassium hexachloroplatinate

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Potassium hexachloroplatinate
Identifiers
3D model (JSmol)
ECHA InfoCard 100.037.239 Edit this at Wikidata
RTECS number
  • TP1650000
  • Cl[Pt-2](Cl)(Cl)(Cl)(Cl)Cl.[K+].[K+]
Properties
K2PtCl6
Molar mass 485.99 g/mol
Appearance orange to yellow solid
Density 3.344 g/cm3
Melting point 250 °C (482 °F; 523 K)
0.89 g​/100ml H2O [1]
Hazards
Flash point 250 °C (482 °F; 523 K)
Related compounds
Other anions
Potassium tetrachloroplatinate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Potassium hexachloroplatinate, an inorganic compound, is an example of a comparatively insoluble potassium salt.

The precipitation of this compound from solutions of hexachloroplatinic acid was formerly used for the determination of potassium by gravimetric analysis.[2]

Potassium hexachloroplatinate may be reduced by hydrazine dihydrochloride to give the corresponding tetrachloroplatinate salt.[3]

References

  1. ^ Grinberg, A. A.; Sibirskaya, V. V. (1967). "Solubility of hexammine and hexahalo platinum(IV) complexes". Zhurnal Neorganicheskoi Khimii. 12: 2069–2071.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^ G. F. Smith, J. L. Gring (1933). "The Separation and Determination of the Alkali Metals Using Perchloric Acid. V. Perchloric Acid and Chloroplatinic Acid in the Determination of Small Amounts of Potassium in the Presence of Large Amounts of Sodium". J. Am. Chem. Soc. 55 (10): 3957–3961. doi:10.1021/ja01337a007.
  3. ^ Keller, R. N.; Moeller, T. (1963). "Potassium Tetrachloroplatinate(II)". Inorg. Synth. Inorganic Syntheses. 7: 247–250. doi:10.1002/9780470132333.ch79. ISBN 978-0-470-13233-3.{{cite journal}}: CS1 maint: multiple names: authors list (link)