硒化铝
硒化铝[1] | |
---|---|
别名 | 三硒化二铝 硒化铝(III) |
识别 | |
CAS号 | 1302-82-5 |
PubChem | 164804 |
ChemSpider | 144477 |
SMILES |
|
InChI |
|
InChIKey | CYRGZAAAWQRSMF-UHFFFAOYAJ |
EINECS | 215-110-6 |
性质 | |
化学式 | Al2Se3 |
290.84 g/mol g·mol⁻¹ | |
外观 | 黄色到棕色粉末 |
氣味 | 无味 |
密度 | 3.437 g/cm3 |
熔点 | 947 °C(1220 K) |
溶解性(水) | 分解 |
结构 | |
晶体结构 | 单斜, mS20, 空间群 Cc, No. 9[2] |
热力学 | |
ΔfHm⦵298K | -566.9 kJ/mol |
S⦵298K | 154.8 J/mol K |
危险性 | |
GHS危险性符号 | |
GHS提示词 | Danger |
H-术语 | H301, H331, H373, H400, H410 |
P-术语 | P260, P261, P264, P270, P271, P273, P301+310, P304+340, P311, P314, P321, P330, P391, P403+233 |
NFPA 704 |
0
3
3
|
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
制备
硒化铝可以由硒和铝在 1,000 °C(1,830 °F)下化合而成:
- 2 Al + 3 Se → Al2Se3
纯的硒化铝是白色的,不过因为样本里有少许杂质,所以有各种颜色。[3] 硒化铝样本必须远离水分,因为硒化铝会与水反应,生成剧毒的硒化氢。[4]
- Al2Se3 + 3 H2O → Al2O3 + 3 H2Se
参考资料
- Lide, David R. 87. Boca Raton, Florida: CRC Press. 1998: 4–40. ISBN 0-8493-0594-2.
- Steigmann, G. A.; Goodyear, J. . Acta Crystallographica. 1966, 20 (5): 617. doi:10.1107/S0365110X66001506.
- Waitkins, G. R.; Shutt, R. . Inorganic Syntheses. Inorganic Syntheses. 1946, 2: 183–186. ISBN 9780470132333. doi:10.1002/9780470132333.ch55.
- Langner, Bernd E. (2005) "Selenium and Selenium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim. doi:10.1002/14356007.a23_525
- https://www.lookchem.cn/dictionary/5716.html
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