Tin (II, IV) oxide
General | |||||||
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Surname | Tin (II, IV) oxide | ||||||
other names |
Tin sesquioxide |
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Molecular formula | Sn 2 O 3 | ||||||
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properties | |||||||
Molar mass | 285.4 g · mol -1 | ||||||
Physical state |
firmly |
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density |
5.9 g cm −3 |
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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 (II, IV) oxide (also tin sesquioxide ) is a metastable compound consisting of tin and oxygen . It has the sum formula Sn 2 O 3 .
properties
Tin sesquioxide is a white-yellow solid. Above approx. 400 ° C, Sn 2 O 3 disproportionates to form metallic tin and tin (IV) oxide.
Manufacturing
The only known manufacturing process is the disproportionation at low temperatures of specially manufactured tin (II) oxide (SnO) to tin, tin (IV) oxide (SnO 2 ) and tin sesquioxide.
The metallic tin can then be separated by chemical reaction, so that a mixture of Sn 2 O 3 and SnO 2 remains.
Individual evidence
- ↑ G. Murken, M. Trom: About the tin oxide, Sn 2 O 3 , formed during the disproportionation of SnO , in: Z. anorg. allg. Chem. 1973 , 397 , 117-126.
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.