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单词 Thymolsulfonephthalein
释义

Thymolsulfonephthalein

中文百科

百里酚蓝 Thymol blue

(重定向自Thymolsulfonephthalein)
Estructuras del azul de timol a diferentes pH
Color of thymol blue solution at different acid-base conditions: left: acidic, middle: neutral, right: alkaline

百里酚蓝(Thymol Blue)是一种褐绿色晶体粉末,被作为pH指示剂使用。

百里酚蓝不溶于水,但易溶于酒精及低浓度碱性溶液。百里酚蓝在pH1.2~2.8,由红色渐变为黄色,在pH8.0~9.6,由黄色渐变为蓝色。

名称:百里酚蓝(pH指示剂)
低于pH 1.2时 高于pH 2.8时
1.2 2.8
名称:百里酚蓝(pH指示剂)
低于pH 8.0时 高于pH 9.6时
8.0 9.6
英语百科

Thymol blue 百里酚蓝

(重定向自Thymolsulfonephthalein)
Color of thymol blue solution at different acid-base conditions: left: acidic, middle: neutral, right: alkaline

Thymol blue (thymolsulphonephthalein) is a brownish-green or reddish-brown crystalline powder that is used as a pH indicator. It is insoluble in water but soluble in alcohol and dilute alkali solutions.

It transitions from red to yellow at pH 1.2–2.8 and from yellow to blue at pH 8.0–9.6. It is usually a component of Universal indicator.

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更新时间:2025/6/21 21:57:49