1、 Barium arsenate was proposed as being an extremely insoluble arsenate,but this was shown to be incorrect.
钡被作为极其难以解决的砷酸盐，但是这被显示是错误的。
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2、 It describes the test and operation of zinc sulfate solution purification by antimony trioxide instead of arsenate.
介绍硫酸锌溶液由砷盐净化改为锑盐净化的试验及生产实践情况。
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