O-Phenylphenol react with sulfuric acid, formaldehyde and ferric iron to form a red colour compound.

邻苯基苯酚与浓硫酸、甲醛和高铁离子生成红色化合物。

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O-Phenylphenol react with sulfuric acid, formaldehyde and ferric iron to form a red colour compound.

邻苯基苯酚与浓硫酸、甲醛和高铁离子生成红色化合物。

youdao