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Atomistry » Platinum » Chemical Properties » Sodium Chlor-platinate | ||
Atomistry » Platinum » Chemical Properties » Sodium Chlor-platinate » |
Sodium Chlor-platinate, Na2PtCl6
Sodium Chlor-platinate, Na2PtCl6.6H2O, crystallises in red, triclinic prisms, of density 2.499. These become anhydrous at 100° C., being converted into a yellow powder.
The heat of solution of the anhydrous salt is: [Na2PtCl6] + Aq. = Na2PtCl6.Aq. +8.54 Cals. For the hydrated salt: [Na2PtCl6.6H2O] + Aq. = Na2PtCl6.Aq. -10.63 Cals. The heat of formation is: [Pt] + 2(Cl2) + 2[NaCl] = [Na2PtCl6] + 73.7 Cals. |
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