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  • A new reagent, dibromomethyl carboxyazo was synthesized and its colour reaction with barium was studied.

    研究了钡的新显色剂二溴对甲偶氮羧的合成及其与钡显色反应的条件。

    youdao

  • A new reagent, dibromomethyl carboxyazo was synthesized and its colour reaction with barium was studied.

    研究了钡的新显色剂二溴对甲偶氮羧的合成及其与钡显色反应的条件。

    youdao

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