氟钽酸钾
氟钽酸钾(Potassium fluorotantalate),分子式K2TaF7。分子量392.13。
氟钽酸钾 | |
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IUPAC名 Dipotassium heptafluorotantalate | |
系统名 Dipotassium heptafluorotantalum(2-) | |
别名 | 七氟合钽酸钾 |
识别 | |
CAS号 | 16924-00-8 |
PubChem | 28146 |
ChemSpider | 28541740 |
SMILES |
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InChI |
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性质 | |
化学式 | K2[TaF7] |
392.13 g·mol⁻¹ | |
外观 | 白色固体 |
密度 | 4.56 g/mL(25 °C) |
熔点 | 630-820 °C(83 K) |
溶解性(水) | 0.5 g/100 mL (15 °C)[1] |
危险性 | |
GHS危险性符号 | |
GHS提示词 | Danger |
H-术语 | H301, H315, H319, H331, H335 |
P-术语 | P261, P264, P270, P271, P280, P301+310, P302+352, P304+340, P305+351+338, P311, P312, P321, P330, P332+313 |
致死量或浓度: | |
LD50(中位剂量) |
110 mg/kg(大鼠,口服) |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
用途
用于制取金属钽。也用作催化剂、试剂。
参考资料
- Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 256.
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