silicomolybdic acid 分子式：H4[SiO4MO12O36] 又称12-硅钼酸。 黄色晶体。与磷钼酸、磷钨酸同晶型。47～55℃熔解。100～105℃失去结晶水。易溶于稀酸。溶于水、乙醇、乙醚。不溶于苯、二硫化碳。水溶液呈黄色。碱或氨水过早分解生成硅酸和钼酸盐。可由钠盐与硫酸作用或汞盐(Ⅰ)与盐酸作用制得。用于定量比色分析。
本文研究了硅钼酸的形成条件及其分析特性，并确定了硅钼酸光度法测定高含量硅的分析方法。
The requirements of formation of silicomolybdic acid and its analysis feature were studied, a modified method for measuring silicomolybdic acid by means of photometry was defined.
分别利用浸渍法和共沉淀法在硅衬底上制备高分散态和大部分结晶态的钼酸铋催化剂。
Silica-supported bismuth molybdate catalysts were prepared by impregnation in a highly dispersed state and by coprecipitation in a largely crystallized state.
应用推荐