REDUCTION OF WO3 BY PHOSPHORUS

被引：21

作者：

MATHIS, H ^{[1
]}

GLAUM, R ^{[1
]}

GRUEHN, R ^{[1
]}

机构：

[1] UNIV GIESSEN,INST ANORGAN & ANALYT CHEM,HEINRICH BUFF RING 58,W-6300 GIESSEN,GERMANY

来源：

ACTA CHEMICA SCANDINAVICA | 1991年 / 45卷 / 08期

关键词：

D O I：

10.3891/acta.chem.scand.45-0781

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The reduction of WO3 by elemental phosphorus at 800-degrees-C leads to the formation of several products. Depending on the molar ratio n(P):n(WO3) in the course of this investigation, WP, WP2, WPO5 and, for the first time, tungsten(IV) diphosphate, WP2O7, were prepared. By chemical vapour transport reactions (transport agent iodine; 200 mg per ampoule; 1050 --> 950-degrees-C), the phosphides and phosphates of tungsten can be purified and crystallized. Heterogeneous and homogeneous equilibria, responsible for the vapour-phase transport of the tungsten compounds, will be discussed.

引用

页码：781 / 784

页数：4

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