12501-23-4O.O=P(O)(O)O.[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O].[O]=[W](=[O])=[O]AVFBYUADVDVJQL-UHFFFAOYSA-N化学的特性Crystalline
用途アルカロイドの検出、染色固定剤、電子顕微鏡用染色剤。
使用Phosphotungstic acid hydrate has been a useful histology stain for cell specimens.
一般的な説明Phosphotungstic acid hydrate is a heteropolyacid.
純化方法A few drops of conc HNO3 are added to 100g of phosphotungstic acid dissolved in 75mL of water, in a separating funnel, and the solution is extracted with diethyl ether. The lowest of the three layers, which contains a phosphotungstic acid-ether complex, is separated, washed several times with 2M HCl, then with water and again extracted with ether. Evaporation of the ether under vacuum with mild heating on a water bath gives crystals which are dried under vacuum and ground [Matijevic & Kerker, J Am Chem Soc 81 1307 1959].
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