Tin (IV) fluoride
Crystal structure | ||||||||||||||||
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__ Sn 4+ __ F - | ||||||||||||||||
Crystal system |
tetragonal |
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Space group |
I 4 / mmm (No. 139) |
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General | ||||||||||||||||
Surname | Tin (IV) fluoride | |||||||||||||||
other names |
Tin tetrafluoride |
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Ratio formula | SnF 4 | |||||||||||||||
Brief description |
colorless solid |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 194.70 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
4.78 g cm −3 |
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Melting point |
705 ° C (sublimation) |
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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 . |
Tin (IV) fluoride is an inorganic chemical compound of tin from the group of fluorides .
Extraction and presentation
Tin (IV) fluoride can be obtained by reacting tin (IV) chloride with hydrogen fluoride .
properties
Tin (IV) fluoride is a colorless, extremely hygroscopic solid that dissolves in water with strong hissing.
Like lead (IV) fluoride, the connection consists of SnF 6 octahedra which are linked to planar layers via common equatorial bridges with four SnF 6 octahedra each .
use
Tin (IV) fluoride is used as an additive to prevent tooth decay in toothpaste.
Individual evidence
- ↑ a b c d e data sheet Tin (IV) fluoride from Sigma-Aldrich , accessed on May 25, 2017 ( PDF ).
- ↑ a b c d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 232.
- ^ AF Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 970.
- ^ Catherine E. Housecroft, Edwin C. Constable: Chemistry: An Introduction to Organic, Inorganic and Physical Chemistry . Pearson Education, 2010, ISBN 0-273-73308-7 , pp. 769 ( limited preview in Google Book search).