A method based on two-stage sublimation purification for obtaining high-purity tungsten (VI) oxide was developed. An impurity analysis of a commercial preparation of tungsten (VI) oxide was performed using mass spectrometry with inductively coupled plasma. Potassium-gadolinium-tungstate [KGW] crystals grown using commercial reagents and tungsten (VI) oxide with chemical purity of 99.999 wt.% were obtained. Acomparative analysis of crystals grown from different initial tungsten oxides was performed. It is shown that the developed high-purity tungsten (VI) oxide does not reduce the chemical purity of the grown KGWcrystals and is a promising raw material for the technology of glass-ceramic optical materials based on tungstates.

开发了一种基于两阶段升华提纯的高纯度氧化钨 (VI) 方法。使用电感耦合等离子体质谱法对商业制备的氧化钨 (VI) 进行杂质分析。获得了使用商业试剂和钨 (VI) 氧化物生长的钾-钆-钨酸盐 [KGW] 晶体，化学纯度为 99.999 重量％。对从不同初始氧化钨生长的晶体进行了比较分析。结果表明，所开发的高纯氧化钨（VI）不会降低生长的 KGW 晶体的化学纯度，是一种很有前途的钨酸盐微晶玻璃光学材料技术原料。