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。
Eriochrome Black T
中文百科
英语百科
Eriochrome Black T 铬黑T
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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