重铬酸铯是一种无机化合物,化学式为Cs2Cr2O7。
重铬酸铯可由重铬酸钠和氯化铯或硫酸铯在70~80 °C混合,冷却后过滤沉淀,洗涤、重结晶得到。[2]它也可由碳酸铯和三氧化铬反应制得:[3]
- Cs2CO3 + 2 CrO3 → Cs2Cr2O7 + CO2↑
重铬酸铯可以和叠氮化钡反应,得到叠氮化铯。[4]它和三氟化溴反应,可以得到CsCrOF4。[5]它和五氧化二钒在430-550 °C反应,可以得到CsCrV2O7:[6]
- 2 Cs2Cr2O7 + 4 V2O5 → 4 CsCrV2O7 + 3 O2↑
它和草酸、草酸铯在溶液中混合,缓慢挥发溶剂可以结晶出暗蓝色的Cs3[Cr(C2O4)3]·2H2O。[7]
Shakhno, I. V.; Plyushchev, V. E. Synthesis of rubidium and cesium dichromate. Khimicheskaya Nauka i Promyshlennost, 1959. 4: 685-686. ISSN: 0368-5586.
Vinarov, I. V.; Fraiman, I. B.; Kolach, S. A. Complex preparation of reactive pure cesium salts from cesium chloride. Khimicheskaya Tekhnologiya (Kharkov), 1966. 6. 98-102. ISSN: 0368-699X.
Csaszar, Lili M.; Rozsa, Karoly. Convenient method for producing small quantities of Cs metal. KFKI (Kozp. Fiz. Kut. Int.) Koezlemeny, 1964. 12 (2): 175-179. CAN61: 82196.
Yonggang Wang, Jie Liang, Ting Wen, Kuo Li, Yingxia Wang, Guobao Li, Fuhui Liao, Jianhua Lin. Syntheses and properties of a series of chromium vanadates ACrV2O7 (A=Na, K, Rb, Cs) with layered structure. Journal of Solid State Chemistry. 2012-08, 192: 1–6 [2020-12-11]. doi:10.1016/j.jssc.2012.03.025. (原始内容存档于2018-07-03) (英语).