Question

Which indicator is used in EDTA titration? ​

Answer 1

Explanation:

→Answers :

(Eriochrome black T. )

is the indicator used in EDTA titration.

→Explanation ;

The indicators are organic colorants that form coloured chelates with metal ions.

Answer 2

EBT is used as an indicator in EDTA titration.

• EDTA is a hexadentate ligands as it can coordinate to a metal atom through six donor atoms. It can form a highly stable chelate complex.
• EDTA is highly used in the complexometric titration. In this complexometric titration, an indicator is used to detect the colour change. The indicator in this titration is EBT or Erichrome Black T.