PROBLEM TO BE SOLVED: To provide a production method of an α-Dawson type poly acid, capable of selectively producing an isomer in a simple method for a short time; the α-Dawson type poly acid produced by the method; and an α-Dawson type poly acid compound.;SOLUTION: A production method of α-Dawson type poly acid represented by the formula (1) is characterized by reacting a metal acid salt with an inorganic acid comprising a hetero atom in a solvent under reflux conditions. Formula (1): [α-AxMyOz]n-, (where A represents a hetero atom selected from phosphorus, silicon, sulfur, germanium, arsenic, selenium and antimony, M represents a metal atom selected from tungsten, vanadium, niobium, molybdenum and tantalum, O represents an oxygen atom, and in addition, n, x, y and z represent an integer of 1 or more).;COPYRIGHT: (C)2015,JPO&INPIT
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机译：解决的问题：提供一种α-道森型多元酸的制造方法，其能够在短时间内以简单的方法选择性地制造异构体。通过该方法生产的α-道森型多元酸;解决方案：由式（1）表示的α-Dawson型多元酸的制备方法的特征在于，使金属酸盐与包含杂原子的无机酸在溶剂中于回流条件。公式（1）：[α-A x M y O z ] n-，（其中A表示选自磷，硅，硫，锗，砷，硒和锑的杂原子，M代表选自钨，钒，铌，钼和钽的金属原子，O代表氧原子，另外，n，x， y和z代表1或更大的整数。）;版权：（C）2015，JPO＆INPIT
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