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词汇 Eriochrome Black T
分类 英语词汇 英语翻译词典
释义

Eriochrome Black T

中文百科

铬黑T


铬黑T,英文名为Eriochrome Black T(其中Eriochrome为Ciba-Geigy公司的商标),简称EBT,是一种配位指示剂,常用于与EDTA一起进行滴定,测定水中钙、镁含量。

英语百科

Eriochrome Black T 铬黑T

EBT is blue in a buffered solution at pH 10. It turns red when Ca2+ ions are added.

Eriochrome Black T is a complexometric indicator that is used in complexometric titrations, e.g. in the water hardness determination process. It is an azo dye. Eriochrome is a trademark of Huntsman Petrochemical, LLC.

In its protonated form, Eriochrome Black T is blue. It turns red when it forms a complex with calcium, magnesium, or other metal ions.

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