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??????????????Oxalic acid;Ethanedioic acid;Dicarboxylic acid

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????????????H2C2O4

??????????????HOOCCOOH

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????90.04

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????????????????????????????????????????????????150??160????????????????????????????????1g????7ml????2ml??????2.5ml??????1.8ml????????100ml??????5.5ml??????????????????????????????0.1mol/L??????pH????1.3??????????(d18.54)1.653??????101??102??(187????????)??????????????????(????????)2000mg/kg??

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