Diammonium tetrachloroplatinate is a chemical compound with the chemical formula (NH4)2[PtCl4].[2][3]

Synthesis

Diammonium tetrachloroplatinate can be synthesised by the reduction of ammonium hexachloroplatinate(IV) with ammonium oxalate:

(NH4)2[PtCl6] + (NH4)2C2O4 → (NH4)2[PtCl4] + 2NH4Cl + 2CO2

Physical properties

Diammonium tetrachloroplatinate forms odorless red crystals,[4] soluble in water, insoluble in ethanol.[1][5]

The crystals have a cubic structure with the space group P4/mmm (space group number 123).

Chemical properties

Diammonium tetrachloroplatinate decomposes if heated:

(NH4)2[PtCl4] → PtCl2 + 2NH4Cl

Uses

Diammonium tetrachloroplatinate was used in photography.[6][7] Also used in spectral analysis standard and in the preparation of platinum sponge and platinum catalytic agent.[4]

References

  1. ^ a b "Ammoniumtetrachloroplatinat" (in German). gestis.dguv.de. Retrieved 11 March 2025.
  2. ^ "Ammonium tetrachloroplatinate(II)". Sigma Aldrich. Retrieved 11 March 2025.
  3. ^ "WebElements Periodic Table » Platinum » diammonium tetrachloroplatinate". winter.group.shef.ac.uk. Retrieved 11 March 2025.
  4. ^ a b "Ammonium tetrachloroplatinate(II), 99.9% (metals basis), Pt 51% min, Thermo Scientific Chemicals | Fisher Scientific". Fisher Scientific. Retrieved 11 March 2025.
  5. ^ Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 34. ISBN 978-1-4398-1462-8. Retrieved 12 March 2025.
  6. ^ Malde, Pradip; Ware, Mike (30 December 2020). Platinotype: Making Photographs in Platinum and Palladium with the Contemporary Printing-out Process. Routledge. p. 63. ISBN 978-1-000-28116-3. Retrieved 12 March 2025.
  7. ^ Kanerva, Lasse (2000). Handbook of Occupational Dermatology. Springer Science & Business Media. p. 1194. ISBN 978-3-540-64046-2. Retrieved 11 March 2025.
Allikas: Https://en.wikipedia.org/wiki/Diammonium_tetrachloroplatinate
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