Palladium (II) sulfide
Crystal structure | ||||||||||||||||
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__ Pd 2+ __ S 2− | ||||||||||||||||
General | ||||||||||||||||
Surname | Palladium (II) sulfide | |||||||||||||||
other names |
Palladium sulfide |
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Ratio formula | PdS | |||||||||||||||
Brief description |
brown powder, blue crystals as mineral |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 138.486 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
6.7 g cm −3 |
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Melting point |
950 ° C (decomposition) |
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solubility |
almost insoluble in water and acids, soluble in (NH 4 ) 2 S. |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Palladium (II) sulfide is a chemical compound of the elements palladium and sulfur . It is a brown salt that decomposes at 950 ° C.
Occurrence
Palladium (II) sulfide occurs naturally as a blue mineral called vysotskite .
Extraction and presentation
Palladium (II) sulfide can be obtained from the elements:
- When palladium is heated with sulfur, palladium (II) sulfide is formed in a molar ratio of 1: 1.
It can also be obtained by adding hydrogen sulfide to palladium (II) salt solutions (here as an example palladium (II) chloride ):
properties
Palladium (II) sulfide crystallizes in the tetragonal crystal system in the space group P 4 2 / m (space group no. 84) with the lattice parameters a = 643 pm and c = 661 pm and eight formula units per unit cell .
Individual evidence
- ↑ a b c d palladium (II) sulfide at webelements.com
- ↑ a b Werner Schröter, Karl-Heinz Lautenschläger, Joachim Teschner, Hildegard Bibrack: Taschenbuch der Chemie . 18th, corrected edition. Harri Deutsch-Verlag, Frankfurt am Main 2001, ISBN 978-3-8171-1655-3 , chap. Palladium and palladium compounds ( excerpt ( memento from August 19, 2005 in the Internet Archive )).
- ^ A b 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.
- ↑ a b Datasheet Palladium (II) sulfide from Sigma-Aldrich , accessed on April 16, 2011 ( PDF ).
- ^ Vysotskit. In: Mineralienatlas Lexikon. Stefan Schorn u. a., accessed on July 30, 2016 .
- ↑ NE Brese, PJ Squattrito, YES Ibers: Reinvestigation of the structure of PdS. In: Acta Cryst. C 1985, 41, pp. 1829-1830, doi: 10.1107 / S0108270185009623 .