清净发亮晶体。很易溶于水。用于制备砷酸盐。

正文

pyroarsenic acid

分子式：H4As2O7

清净发亮晶体。很易溶于水。很易潮解。溶于水放出大量的热量而转变为砷酸。可由酸加热脱水制得。用于制备砷酸盐。

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