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碲化铋
化合物 / 维基百科,自由的 encyclopedia
碲化铋是一种灰色的粉末,分子式为Bi2Te3。碲化铋是个半导体暨热电材料,具有较好的导电性,但导热性较差。它是一种半导体,它与锑或硒合金是高效率的热电材料,用于制冷或便携式发电。拓扑绝缘体表面态已在碲化铋被观察到。
Quick Facts 碲化铋, 识别 ...
碲化铋 | |
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识别 | |
CAS号 | 1304-82-1 ![]() |
PubChem | 6379155 |
ChemSpider | 11278988 |
SMILES |
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InChI |
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InChIKey | AZFMNKUWQAGOBM-UHFFFAOYAF |
EINECS | 215-135-2 |
性质 | |
化学式 | Bi2Te3 |
摩尔质量 | 800.761 g/mol g·mol⁻¹ |
外观 | 灰色粉末 |
密度 | 7.642 g/cm3 |
熔点 | 585 °C(858 K)([1]) |
溶解性(水) | 不溶于水 |
溶解性 | 溶于乙醇 |
结构 | |
晶体结构 | 三方晶系, hR15, SpaceGroup = R-3m, No. 166 |
危险性 | |
NFPA 704 | |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
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虽然碲化铋的危险性低,但是如果大量的摄取也有致命的危险。