OrganoMetallurgy (talk | contribs) added Category:Chloro complexes using HotCat |
Graeme Bartlett (talk | contribs) pubchem einecs hazards |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID = 10628022 |
| ChemSpiderID = 10628022 |
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| PubChem = 16211460 |
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| EINECS = 240-973-0 |
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| InChI = 1/6ClH.2H3N.Pt/h6*1H;2*1H3;/q;;;;;;;;+4/p-4/rCl6Pt.2H3N/c1-7(2,3,4,5)6;;/h;2*1H3/q-2;;/p+2 |
| InChI = 1/6ClH.2H3N.Pt/h6*1H;2*1H3;/q;;;;;;;;+4/p-4/rCl6Pt.2H3N/c1-7(2,3,4,5)6;;/h;2*1H3/q-2;;/p+2 |
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| ChEBI_Ref = {{ebicite|correct|EBI}} |
| ChEBI_Ref = {{ebicite|correct|EBI}} |
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| MeltingPt_notes = decomposes |
| MeltingPt_notes = decomposes |
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| Solubility = 0.289 g/100ml (0 °C)<br /> 0.7 g/100ml (15 °C)<ref>{{cite web|url=http://chemister.ru/Database/properties-en.php?dbid=1&id=7145 |title=ammonium hexachloroplatinate(IV) |publisher=Chemister.ru |date=2007-03-19 |accessdate=2014-06-03}}</ref><br /> 0.499 g/100ml (20 °C)<br /> 3.36 g/100ml (100 °C)}} |
| Solubility = 0.289 g/100ml (0 °C)<br /> 0.7 g/100ml (15 °C)<ref>{{cite web|url=http://chemister.ru/Database/properties-en.php?dbid=1&id=7145 |title=ammonium hexachloroplatinate(IV) |publisher=Chemister.ru |date=2007-03-19 |accessdate=2014-06-03}}</ref><br /> 0.499 g/100ml (20 °C)<br /> 3.36 g/100ml (100 °C)}} |
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| Section7 = {{Chembox Hazards |
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| Hazards_ref = |
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| ExternalSDS = |
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| GHSPictograms = {{GHS05}}{{GHS06}}{{GHS07}}{{GHS08}} |
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| GHSSignalWord = Danger |
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| HPhrases = {{H-phrases|290|301|317|318|334}} |
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| PPhrases = {{P-phrases|234|261|264|270|272|280|285|301+310|302+352|304+341|305+351+338|310|321|330|333+313|342+311|363|390|404|405|501}} |
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| MainHazards = |
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| IngestionHazard = |
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| InhalationHazard = |
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| EyeHazard = |
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| SkinHazard = |
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| NFPA-F = |
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| NFPA-S = |
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| FlashPt = |
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| FlashPtC = |
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| FlashPt_notes = |
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| FlashPt_ref = |
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| AutoignitionPt = |
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| AutoignitionPtC = |
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| AutoignitionPt_notes= |
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| ExploLimits = |
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| TLV = |
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| TLV-TWA = |
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| TLV-STEL = |
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| TLV-C = |
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| LD50 = 195 mg/kg rat |
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| LDLo = |
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}} |
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Revision as of 09:08, 15 August 2017
Names | |
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IUPAC name
Ammonium hexachloroplatinate(IV)
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Other names
ammonium chloroplatinate
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.037.233 |
EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
(NH4)2PtCl6 | |
Molar mass | 443.87 g/mol |
Appearance | yellow crystals |
Odor | odorless |
Density | 3.065 g/cm3 |
Melting point | 380 °C (716 °F; 653 K) decomposes |
0.289 g/100ml (0 °C) 0.7 g/100ml (15 °C)[1] 0.499 g/100ml (20 °C) 3.36 g/100ml (100 °C) | |
Hazards | |
GHS labelling: | |
Danger | |
H290, H301, H317, H318, H334 | |
P234, P261, P264, P270, P272, P280, P285, P301+P310, P302+P352, P304+P341, P305+P351+P338, P310, P321, P330, P333+P313, P342+P311, P363, P390, P404, P405, P501 | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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195 mg/kg rat |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ammonium hexachloroplatinate, also known as ammonium chloroplatinate, is the inorganic compound with the formula (NH4)2[PtCl6]. It is a rare example of a soluble platinum(IV) salt that is not hygroscopic. It forms intensely yellow solutions in water. In the presence of 1M NH4Cl, its solubility is only 0.0028 g/100 mL.
Preparation and structure
The compound consists of separate tetrahedral ammonium cations and octahedral [PtCl6]2− anions. It is usually generated as a fine yellow precipitate by treating a solution of hexachloroplatinic acid with a solution of an ammonium salt.[2] The complex is so poorly soluble that this step is employed in the isolation of platinum from ores and recycled residues.[3]
As analyzed by X-ray crystallography, the salt crystallizes in a cubic motif reminiscent of the fluorite structure. The [PtCl6]2− centers are octahedral. The NH4+ centers are hydrogen bonded to the chloride ligands.[4]
Uses and reactions
Ammonium hexachloroplatinate is used in platinum plating. Heating (NH4)2[PtCl6] under a stream of hydrogen at 200 °C produces platinum sponge. Treating this with chlorine gives H2[PtCl6].[2]
References
- ^ "ammonium hexachloroplatinate(IV)". Chemister.ru. 2007-03-19. Retrieved 2014-06-03.
- ^ a b George B. Kauffman (1967). "Ammonium Hexachloroplatinate(IV)". Inorganic Syntheses. Inorganic Syntheses. 9: 182–185. doi:10.1002/9780470132401.ch51. ISBN 978-0-470-13240-1.
- ^ Cotton, S. A. Chemistry of Precious Metals, Chapman and Hall (London): 1997. ISBN 0-7514-0413-6.
- ^ Verde-Gómez, Y.; Alonso-Nuñez, G.; Cervantes, F.; Keer, A. "Aqueous solution reaction to synthesize ammonium hexachloroplatinate and its crystallogrpahic and thermogravimetric characterization" Materials Letters, 2003, volume 57, p 4667-4672. doi:10.1016/S0167-577X(03)00381-1