Eriochrome Black T (C.I. 14645)
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.
When used as an indicator in an EDTA titration, the characteristic blue end-point is reached when sufficient EDTA is added and the metal ions bound to the indicator are chelated by EDTA, leaving the free indicator molecule.
Dyes, Stains & Indicators
|Purity||Absorptivity Lambda min 621nm|
|Storage Conditions||Room temperature|
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