Chelate

Science / Chemistry / Chelate: A stable complex of a metal with one or more polydentate ligands. For example, calcium complexes with EDTA to form a chelate.

Organochromic Indicators

Science / Chemistry / Organochromic Indicators: Colored organic compounds that change color when they chelate different metals. Organochromic indicators are used to determine the endpoint in complexometric titrations. Examples of organochromic indi MORE

Complexometric Titration

Science / Chemistry / Complexometric Titration: A titration based on a reaction between a ligand and a metal ion to form a complex. For example, free Ca2+ in milk powder can be determined by titrating a milk powder sample with EDTA solution, which MORE

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