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词汇 bromothymol blue
分类 英语词汇 英语翻译词典
释义

bromothymol blue

英汉-汉英词典
溴百里酚蓝;溴麝香草酚蓝;二溴百里酚磺酞
词组 | 习惯用语
您要查找的是不是：
    bromthymol blue 溴百里酚蓝
    bromothymol ĥ blue 溴麝香草酚蓝
    bromothymol ŕ blue 溴麝香草酚蓝
    bromothymol õ blue 溴麝香草酚蓝
    Sodium bromothymol blue 溴百里酚蓝钠盐
    Bromothymol Blue Na 溴麝香草酚兰
    Bromothymol Blue solution 溴百里酚蓝
bromothymol blue [试剂] 溴麝香草酚蓝
中文百科

溴百里酚蓝

BTB指示剂在酸性、中性和碱性溶液中的颜色（从左至右）
溴百里酚蓝在不同pH值时的结构

溴百里酚蓝（中文译名颇多：溴瑞香草蓝、溴瑞香草酚蓝、溴化麝香草酚蓝、溴麝香草酚兰、溴麝香草酚蓝、溴芮香草蓝、溴百里酚蓝指示剂，又名酒精­蓝色指示剂）是测定弱酸弱碱时使用的一种指示剂，其酸性时为黄色，碱性时为蓝色。

其酸碱平衡为：

C27H28Br2O5S ⇌ H + C27H27Br2O5S

溴百里酚蓝的pKa为7.10。

英语百科

Bromothymol blue 溴百里酚蓝

Structure at different pH ranges
The different colors of bromothymol blue. From left to right: blank, pH 4, 6.2, 6.6, 7.2, 7.5, 8, and 12

Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator. It is mostly used in applications that require measuring substances that would have a relatively neutral pH (near 7). A common use is for measuring the presence of carbonic acid in a liquid. It is typically sold in solid form as the sodium salt of the acid indicator.

近义、反义、联想词
近义词
n.
dye, dyestuff, acid-base indicator

英英词典
bromothymol blue n.
  1. a dye used as an acid-base indicator

    2. synonymous： bromthymol blue
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