|
Atomistry » Platinum » Chemical Properties » Potassium Chlor-platinate | ||||||||||||||||
Atomistry » Platinum » Chemical Properties » Potassium Chlor-platinate » |
Potassium Chlor-platinate, K2PtCl6
Potassium Chlor-platinate, K2PtCl6, is most readily obtained by adding potassium chloride to an acidulated solution of platinum tetrachloride. It crystallises in cubic octahedra which are yellow in colour and but slightly soluble in water, and still less soluble in alcohol. The formation of this salt is therefore utilised in the quantitative estimation of potassium and platinum.
Its solubility in water at various temperatures is as follows:
The heat of formation of potassium chlor-platinate is: [Pt] + 2(Cl2) + 2KCl.Aq. = K2PtCl6.Aq. + 83.3 Cals. When ignited, the salt decomposes, yielding a mixture of spongy platinum and potassium chloride. The reaction is not readily completed in air, but in a current of hydrogen the decomposition is quantitatively exact. The density of potassium chlor-platinate is 3.499. |
Last articlesZn in 9JPJZn in 9JP7 Zn in 9JPK Zn in 9JPL Zn in 9GN6 Zn in 9GN7 Zn in 9GKU Zn in 9GKW Zn in 9GKX Zn in 9GL0 |
© Copyright 2008-2020 by atomistry.com | ||
Home | Site Map | Copyright | Contact us | Privacy |