碘化鉛(化學式:PbI2),是鉛最常見的碘化物。在室溫下為黃色固體,經加熱後會變為磚紅色。在水中溶解度低,但可溶於熱水。
製備
將硝酸鉛水溶液與碘化鉀水溶液混合後,即產生碘化鉛沉澱與硝酸鉀水溶液:
- Pb(NO3)2 + 2 KI → PbI2 ↓ + 2 KNO3
碘化鉛也可藉由將鉛與氫碘酸反應製得:
- Pb + 2 HI → PbI2 ↓ + H2 ↑
參見
參考來源
- ^ Clever, H. L.; Johnston, F. J. The Solubility of Some Sparingly Soluble Lead Salts: An Evaluation of the Solubility in Water and Aqueous Electrolyte Solution (PDF). J. Phys. Chem. Ref. Data (NIST data review). 1980, 9 (3): 751–784 [2017-07-13]. Bibcode:1980JPCRD...9..751C. doi:10.1063/1.555628. (原始内容 (PDF)存档于2014-02-11).
- ^ Ahuja, R.; Arwin, H.; Ferreira Da Silva, A.; Persson, C.; Osorio-Guillén, J. M.; Souza De Almeida, J.; Moyses Araujo, C.; Veje, E.; Veissid, N.; An, C. Y.; Pepe, I.; Johansson, B. Electronic and optical properties of lead iodide. Journal of Applied Physics. 2002, 92 (12): 7219–7224. Bibcode:2002JAP....92.7219A. doi:10.1063/1.1523145. hdl:10495/11556.
- ^ Zhong, Mianzeng; Zhang, Shuai; Huang, Le; You, Jingbi; Wei, Zhongming; Liu, Xinfeng; Li, Jingbo. Large-scale 2D PbI2 monolayers: experimental realization and their indirect band-gap related properties. Nanoscale. 2017, 9 (11): 3736–3741. PMID 28102404. doi:10.1039/c6nr07924e.
- ^ Haynes, p. 4.128