| Names | |
|---|---|
| IUPAC name diazanium; hexach loropalladium(2-) | |
| Other names Ammonium hexachloropalladate(IV) | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.038.943 
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| EC Number |
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| PubChem CID | |
| CompTox Dashboard (EPA) | |
InChI
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SMILES
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| Properties | |
| Chemical formula | Cl6H8N2Pb |
| Molar mass | 456.0 g·mol |
| Appearance | red-brown crystals |
| Density | 2.148 g/cm |
| Solubility in water | slightly soluble |
| Hazards | |
| GHS labelling: | |
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| Signal word | Warning |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Ammonium hexachloropalladate is an inorganic chemical compound with the chemical formula (NH4)2PdCl6.
Synthesis
Ammonium hexachloropalladate can be made by passing chlorine through a suspension of ammonium tetrachloropalladate(II) in ammonium chloride solution:
- (NH4)2[PdCl4] + Cl2 → (NH4)2[PdCl6]
The compound is precipitated from the palladium(IV) chloride solution with adding ammonium chloride:
- PdCl6 + 2NH4Cl → (NH4)2[PdCl6] + 2HCl
Physical properties
Ammonium hexachloropalladate forms red-brown crystals of cubic system, space group Fm3m, cell parameters a = 0.983 nm, Z = 4.
It is slightly soluble in water.
Chemical properties
The compound decomposes upon heating to form ammonium tetrachloropalladate(II):
- (NH4)2[PdCl6] → (NH4)2[PdCl4] + Cl2
References
- "Ammonium hexachloropalladate(IV)". Sigma Aldrich. Retrieved 7 October 2024.
- "Ammonium Hexachloropalladate(IV)". American Elements. Retrieved 7 October 2024.
- Guindy, M. I. El (22 October 2013). Precious Metals 1982: Proceedings of the Sixth International Precious Metals Institute Conference, Held in Newport Beach, California, June 7 - 11, 1982. Elsevier. p. 466. ISBN 978-1-4831-8948-2. Retrieved 7 October 2024.
- Lide, David R. (9 March 1995). CRC Handbook of Chemistry and Physics: A Ready-reference Book of Chemical and Physical Data. CRC Press. p. 4-41. ISBN 978-0-8493-0595-5. Retrieved 7 October 2024.
- Donnay, Joseph Désiré Hubert (1973). Crystal Data: Inorganic compounds. National Bureau of Standards. p. 254. Retrieved 7 October 2024.