硫代硫酸钙
化合物
硫代硫酸钙 | |
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识别 | |
CAS号 | 10124-41-1(六水) |
PubChem | 24964 |
SMILES |
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EC编号 | 233-333-7 |
性质 | |
化学式 | CaO3S2 |
摩尔质量 | 152.21 g·mol−1 |
外观 | 无色[1] 晶体[2] |
密度 | 1,87 g·cm−3(六水)[3] |
熔点 | 45 °C(六水,分解)[3] |
溶解性(水) | 可溶[3] |
溶解性 | 不溶于乙醇[3] |
相关物质 | |
其他阴离子 | 硫化钙 亚硫酸钙 硫酸钙 |
其他阳离子 | 硫代硫酸镁 硫代硫酸钡 |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
制备
性质
硫代硫酸钙是一种无色晶体,其六水合物可溶于水。[3]它在 45 °C以上分解。[2]六水合物是三斜晶系的,空间群 P1 (No. 2),晶格参数 a = 7.42±0.01、b = 9.48±0.01、c = 15.19±0.01 Å,α = 128.7±0.3、β = 100.1±0.3、γ = 143.1±3°。[7][8]硫代硫酸钙的六水合物在 45 °C 分解成二水合物,而后者会在 85 °C分解成无水合物。到了112 °C ,无水合物分解成硫酸钙、硫和二氧化硫。[4]也有文献指出硫代硫酸钙的热分解产物是亚硫酸钙和硫。[9]
用处
参考资料
- ^ C. Arnold, G. Christ, K. Dietrich, Ed. Gildmeister, P. Janzen, C. Scriba, B. Fischer, C. Hartwich. Hagers Handbuch der Pharmaceutischen Praxis Für Apotheker, Ärzte, Drogisten und Medicinalbeamte. Erster Band. Springer-Verlag. 2013: 576. ISBN 978-3-642-47350-0.
- ^ 2.0 2.1 Record of Calciumthiosulfat in the GESTIS Substance Database from the IFA
- ^ 3.0 3.1 3.2 3.3 3.4 William M. Haynes. CRC Handbook of Chemistry and Physics. CRC Press. 2016: 54. ISBN 978-1-4987-5429-3.
- ^ 4.0 4.1 4.2 Richard C. Ropp. Encyclopedia of the Alkaline Earth Compounds. Newnes. 2012: 159. ISBN 0-444-59553-8.
- ^ H. Ballczo, O. Kaufmann: Calciumthiosulfat. In: Monatshefte für Chemie. 80, 1949, S. 220, doi:10.1007/BF00906465.
- ^ NLM Hazardous Substances Data Bank entry for Calcium thiosulfateCalcium thiosulfate. 2019-04-05
- ^ Y. Elerman, A. Aydin Uraz u. a.: Crystal data for calcium and nickel thiosulphate hexahydrates: CaS2O3·6H2O and NiS2O3·6H2O. In: Journal of Applied Crystallography. 10, 1977, S. 362, doi:10.1107/S0021889877013673.
- ^ Peter Held, Ladislav Bohatý: Calcium and strontium thiosulfate, CaS2O3·6H2O and SrS2O3·5H2O. In: Acta Crystallographica Section C Crystal Structure Communications. 60, 2004, S. i97, doi:10.1107/S0108270104017986.
- ^ Lutz, Heinz D.; Kostic, Ljiljana. Chemistry of sulfur. LXXXIII. Calcium polysulfides(德文). Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, Biochemie, Biophysik, Biologie, 1966. 21 (9): 892-893. ISSN: 0044-3174.
- ^ Nicholas P. Cheremisinoff, Paul Rosenfeld. Handbook of Pollution Prevention and Cleaner Production Vol. 3: Best Practices in the Agrochemical Industry. William Andrew. 2010: 98. ISBN 978-1-4377-7825-0.
拓展阅读
- Lah, Woon Lyong; Kang, Wha Soo. Studies on the conversion of hexatomic sulfur to octatomic sulfur in the manufacture of precipitated sulfur. II(韓文). Yakhak Hoechi, 1983. 27 (3): 229-234. ISSN: 0513-4234.
- N.D. Ilankoon, C. Aldrich, E.A. Oraby, J.J. Eksteen. Use of polyethylenimine functionalised magnetic nanoparticles for gold thiosulfate recovery. Hydrometallurgy. 2020-08, 195: 105375 [2021-08-16]. doi:10.1016/j.hydromet.2020.105375 (英语).