Platinum (II) sulfide
| Crystal structure | |||||||||||||||||||
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| __ Pt 2+ __ S 2− | |||||||||||||||||||
| General | |||||||||||||||||||
| Surname | Platinum (II) sulfide | ||||||||||||||||||
| other names |
Platinum monosulfide |
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| Ratio formula | PtS | ||||||||||||||||||
| Brief description |
green powder, steel-gray crystals as Mineral Cooperit |
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| properties | |||||||||||||||||||
| Molar mass | 227.14 g mol −1 | ||||||||||||||||||
| Physical state |
firmly |
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| density |
10.3 g cm −3 |
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| solubility |
almost insoluble in water and nitric acid , soluble in ammonium sulfide |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | |||||||||||||||||||
Platinum (II) sulfide is a chemical compound of the elements platinum and sulfur . It's a green salt .
Occurrence
Platinum (II) sulfide occurs naturally as a steel-gray mineral cooperite .
Extraction and presentation
Platinum (II) sulfide can be obtained from the elements:
- When platinum is heated with sulfur, platinum (II) sulfide is formed at a molar ratio of 1: 1.
properties
Physical Properties
Platinum (II) sulfide crystallizes in the tetragonal crystal system with the space group P 4 2 / mmc (space group no. 131) and the lattice parameters a = 347.00 pm and c = 610.96 pm, in the unit cell there are two formula units .
Chemical properties
Platinum (II) sulfide is insoluble in acids, aqua regia and alkalis. It decomposes by glowing with potassium chlorate or potassium nitrate .
Individual evidence
- ↑ a b c platinum (II) sulfide on webelements.com
- ^ A b c A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , p. 1734.
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ^ A b Jean D'Ans, Ellen Lax: Paperback for chemists and physicists. 3. Elements, inorganic compounds and materials, minerals, Volume 3. 4. Edition, Springer, 1997, ISBN 978-3-5406-0035-0 , p. 680 ( limited preview in Google book search).