Diammonium tetrachloroplatinate

Diammonium tetrachloroplatinate
	2
Names
	IUPAC name diazanium;tetrachloroplatinum(2-)
	Other names Ammonium tetrachloroplatinate(II)
Identifiers
CAS Number	13820-41-2 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:60147;
ChemSpider	17339498;
ECHA InfoCard	100.034.076
EC Number	237-499-1;
Gmelin Reference	79515
PubChem CID	16211508;
UNII	Z5NY20A9S2;
CompTox Dashboard (EPA)	DTXSID2049216;
	InChI InChI=1S/4ClH.2H3N.Pt/h41H;21H3;/q;;;;;;+2/p-2 Key: QJIMNDWDOXTTBR-UHFFFAOYSA-L;
	SMILES [H][N+]([H])([H])[H].[H][N+]([H])([H])[H].Cl[Pt--](Cl)(Cl)Cl;
Properties
Chemical formula	(NH4)2[PtCl4]
Molar mass	372.96 g·mol−1
Appearance	red solid
Density	2.936 g/cm3
Melting point	140–150 °C (284–302 °F; 413–423 K) (decomposes)
Solubility in water	soluble
Solubility	insoluble in alcohol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H315, H317, H318, H334
Precautionary statements	P280, P301, P302, P305, P310, P330, P338, P351, P352
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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

Structure

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

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

Chemical properties

Diammonium tetrachloroplatinate decomposes if heated:

(NH₄)₂[PtCl₄] → PtCl₂ + 2NH₄Cl

Uses

Diammonium tetrachloroplatinate was used in photography.^[3]^[4] It was also used in spectral analysis standard and in the preparation of platinum sponge and platinum catalytic agent.^[5]

References

↑ Perry, Dale L. (2016-04-19). Handbook of Inorganic Compounds. CRC Press. p. 34. ISBN 978-1-4398-1462-8.
↑ "Ammoniumtetrachloroplatinat" (in German). gestis.dguv.de. Retrieved 11 March 2025.
↑ 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.
↑ Kanerva, Lasse (2000). Handbook of Occupational Dermatology. Springer Science & Business Media. p. 1194. ISBN 978-3-540-64046-2. Retrieved 11 March 2025.
↑ "Ammonium tetrachloroplatinate(II), 99.9% (metals basis), Pt 51% min, Thermo Scientific Chemicals | Fisher Scientific". Fisher Scientific. Retrieved 11 March 2025.

[handbook-1] Perry, Dale L. (2016-04-19). Handbook of Inorganic Compounds. CRC Press. p. 34. ISBN 978-1-4398-1462-8.

[2] "Ammoniumtetrachloroplatinat" (in German). gestis.dguv.de. Retrieved 11 March 2025.

[3] 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.

[4] Kanerva, Lasse (2000). Handbook of Occupational Dermatology. Springer Science & Business Media. p. 1194. ISBN 978-3-540-64046-2. Retrieved 11 March 2025.

[FS-5] "Ammonium tetrachloroplatinate(II), 99.9% (metals basis), Pt 51% min, Thermo Scientific Chemicals | Fisher Scientific". Fisher Scientific. Retrieved 11 March 2025.

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