• A white or pale yellow crystalline powder, C20H14O4, used as an acid-base indicator, in making dyes, and in medicine as a laxative.

    苯酚酞一种白色黄色晶体粉末c20h14o4用作酸性指示

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  • A white or pale yellow crystalline powder, C20H 14o 4, used as an acid-base indicator, in making dyes, and in medicine as a laxative.

    白色黄色晶体粉末C20 H14o4用作酸性指示剂,用于染料医学上用作一种轻剂。

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  • Discussed a reason discoloration range of acid-base indicator function reason in a text book, pointed out some discoloration reason problems in the book.

    探讨本教材关于酸碱指示剂作用原理的理论变色范围探讨,指出了该教材在理论变色范围推论存在的问题。

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  • The fuzzy character of colour of the acid base indicator alizarin yellow R is studied in the paper.

    研究酸碱指示剂茜素R颜色模糊特性

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  • In the form of a water solution or as litmus paper, it is the oldest and most-used indicator of whether a substance is an acid or a Base.

    水溶液或者做成石蕊后,古老最常用指示剂,可以指示一种物质还是碱。

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  • In the form of a water solution or as litmus paper, it is the oldest and most-used indicator of whether a substance is an acid or a Base.

    水溶液或者做成石蕊后,古老最常用指示剂,可以指示一种物质还是碱。

    youdao

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