Stibine
From Biocrawler, the free encyclopedia.
| Stibine | |
|---|---|
| Systematic name | Stibane |
| Other names | Antimony trihydride |
| Molecular formula | SbH3 |
| Molar mass | 124.784 g/mol |
| CAS number | [7803-52-3] |
| UN number | 2676 |
| Density | 5.48 kg/m3 (gas) |
| Solubility (water) | Insoluble |
| Melting point | -88°C |
| Boiling point | -17°C |
| Safety data | |
| EU classification | Harmful (Xn) Dangerous for the environment (N) |
| R-phrases | R20/22, R50/53 |
| S-phrases | S2, S61 |
| TLV | 0.1 ppm |
| Disclaimer and references | |
Stibine is a colourless gas formed by the reaction of certain antimony compounds with water or reducing agents. It is unstable with respect to its elements, and decomposes slowly at room temperature or rapidly at 200°C: the decomposition is autocatalytic and can be explosive. Stibine is readily oxidized to water and antimony trioxide.
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Uses
Stibine is used in the electronics industry to deposit small quantities of antimony by chemical vapour deposition (CVD).
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Safety
Stibine is a flammable gas which can form explosive mixtures with air. It is highly toxic, with a LD50 of 100 ppm in mice.
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External links
- European Chemicals Bureau (http://ecb.jrc.it)
- International Chemical Safety Card 0776 (http://www.ilo.org/public/english/protection/safework/cis/products/icsc/dtasht/_icsc07/icsc0776.htm)
- Institut national de recherche et de sécurité, France (http://www.inrs.fr) (in French)ja:スチビン
