六钼铬(III)酸铵

六钼铬(III)酸铵是一种无机化合物，化学式为(NH4)3[CrMo6O18(OH)6]。它可由三价铬盐的溶液和沸腾的仲钼酸铵溶液反应制得。Kenji Nomiya; Takeo Takahashi; Takahiro Shirai; Makoto Miwa (1987). Anderson-type heteropolyanions of molybdenum(VI) and tungsten(VI). Polyhedron, 6(2), 213–218. Ying Wang; et al. Highly efficient oxidation of alcohols to carboxylic acids using a polyoxometalate-supported chromium(iii) catalyst and CO2. Green Chem., 2020,22, 3150-3154. .它和Eu3+在溶液中反应，可以得到Eu[CrMo6O18(OH)6]·11H2O。A.B Yusov; et al. Luminescence study of new Ln(III) compounds formed with Anderson’s heteropolyanions Al(OH)6Mo6O183− and Cr(OH)6Mo6O183−. Journal of Alloys and Compounds, 2002. 344. 1-2: 289-292. .

它的七水合物在40 °C开始失水，并于100 °C失去全部七分子水，进一步加热脱氨失水，并于480 °C生成Cr2(MoO4)3和MoO3；La Ginestra, Aldo; Cerri, R.; Giannetta, Fernando; Fiorucci, Pio. Alkali hexamolydochromates. Preparation, characterization, and thermal behavior. Journal of Thermal Analysis (1970), 2(2), 107-117. .它在氢气中加热，最终的分解产物是三氧化二铬和钼。Botto, I. L.; Cabello, C. I.; Thomas, H. J.; Cordischi, D.; Minelli, G.; Porta, P. Reduction process of the (NH4)3[CrMo6O24H6]·7H2O Anderson phase: spectroscopic, structural and morphological properties. Materials Chemistry and Physics (2000), 62(3), 254-262. .

参考文献

Category:杂多酸盐
Category:铵盐
Category:三价铬化合物