Chloroplatinic acid
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Chloroplatinic acid (also known as hexachloroplatinic acid) is an inorganic compound with the formula [H3O]2[PtCl6](H2O)x (0 ≤ x ≤ 6). A red solid, it is an important commercial source of platinum, usually as an aqueous solution. Although often written in shorthand as H2PtCl6, it is the hydronium (H3O+) salt of the hexachloroplatinate anion (PtCl2−
6).[1][2][3] Hexachloroplatinic acid is highly hygroscopic.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Dihydronium hexachloroplatinate(2–) | |
Other names
Hexachloroplatinic acid Hydronium hexachloroplatinate(IV) | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.037.267 |
EC Number |
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PubChem CID |
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RTECS number |
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UNII | |
UN number | 2507 |
CompTox Dashboard (EPA) |
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Properties | |
H6Cl6Pt | |
Molar mass | 409.81 g/mol |
Appearance | Reddish brown solid |
Density | 2.431 g/cm3 |
Melting point | 60 °C (140 °F; 333 K) |
Boiling point | decomposes |
highly soluble | |
Structure | |
Anti-fluorite. | |
octahedral | |
0 D | |
Hazards | |
GHS labelling: | |
Danger | |
H301, H314, H317, H334 | |
P260, P261, P264, P270, P272, P280, P285, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P304+P341, P305+P351+P338, P310, P321, P330, P333+P313, P342+P311, P363, P405, P501 | |
NFPA 704 (fire diamond) | |
Safety data sheet (SDS) | External MSDS |
Related compounds | |
Other anions |
Hexachloropalladic acid |
Other cations |
Potassium hexachloroplatinate, Ammonium hexachloroplatinate, Rubidium hexachloroplatinate, Caesium hexachloroplatinate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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