Azo violet

Azo violet (4-(4-Nitrophenylazo)resorcinol) is an organic compound with the chemical formula C₁₂H₉N₃O₄. It is used commercially as a violet dye and experimentally as a pH indicator, turning blue-purple in the presence of magnesium salt in a slightly alkaline, or basic, environment. Azo violet may also be used to test for the presence of ammonium ions. The color of ammonium chloride or ammonium hydroxide solution will vary depending upon the concentration of azo violet used.

单词	azoviolet
释义	azoviolet 英汉-汉英词典 n. 偶氮紫;镁试剂词组 \| 习惯用语您要查找的是不是： violet n. 紫罗兰；堇菜；羞怯的人 adj. 紫罗兰色的；紫色的 ultraviolet adj. (光)紫外的 Violetta n. 维奥莱塔（女子名，等于Violet） violette n. 董菜花；紫罗兰英语百科 Azo violet Azo violet (4-(4-Nitrophenylazo)resorcinol) is an organic compound with the chemical formula C₁₂H₉N₃O₄. It is used commercially as a violet dye and experimentally as a pH indicator, turning blue-purple in the presence of magnesium salt in a slightly alkaline, or basic, environment. Azo violet may also be used to test for the presence of ammonium ions. The color of ammonium chloride or ammonium hydroxide solution will vary depending upon the concentration of azo violet used.
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azoviolet

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Azo violet