Phosphorus pentaiodide
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Structural formula | ||||||||||
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General | ||||||||||
Surname | Phosphorus pentaiodide | |||||||||
Molecular formula | PI 5 | |||||||||
Brief description |
black-brown solid |
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properties | ||||||||||
Molar mass | 665.94 g mol −1 | |||||||||
Physical state |
firmly |
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Melting point |
41 ° C (decomposition) |
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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 . |
Phosphorus pentaiodide is a chemical compound with the empirical formula PI 5 .
In contrast to the homologous phosphorus pentabromide , chloride and fluoride , it does not have a trigonal-bipyramidal structure. In solution it is an adduct between phosphorus triiodide (PI 3 ) and an iodine molecule (I 2 ). A cocrystallizate of phosphorus triiodide and iodine forms in the solid .
Extraction and presentation
Phosphorus pentaiodide can be prepared by reacting sodium iodide with phosphorus pentachloride in methyl iodide .
Individual evidence
- ↑ a b A. F. Holleman , N. Wiberg : Inorganische Chemie . 103rd edition. Volume 1: Basics and main group elements. Walter de Gruyter, Berlin / Boston 2016, ISBN 978-3-11-049585-0 , p. 886 (reading sample: Part A - Basics of the chemistry of hydrogen. Google book search ).
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ^ AF Holleman , N. Wiberg : Inorganische Chemie . 103rd edition. Volume 1: Basics and main group elements. Walter de Gruyter, Berlin / Boston 2016, ISBN 978-3-11-049585-0 , p. 892 (Reading sample: Part A - Basics of the chemistry of hydrogen. Google book search ).
- ↑ NG Feshchenko, VG Kostina, AV Kirsanov: Synthesis of phosphorus pentaiodide. In: Zhurnal Obshchei Khimii. 48, 1, 1978, p. 222, doi: 10.1002 / chin.197823039 .