Complexometric titration involves the formation of a complex by reacting a metal ion with one or more ligands. A visual indicator often detects the end point of a complexometric titration. It is added to the metal solution before the titration, forming a stable metal–indicator complex and imparting color to the solution. As the titration approaches the equivalence point, the excess of the added ligand displaces the indicator from the metal–indicator complex, releasing the free indicator. The free indicator formation changes the color of the solution rapidly, signaling an endpoint. O,O′-dihydroxyazo compounds, such as eriochrome black T and calmagite, are frequently used as indicators in complexometric titrations.

Tags
Complexometric TitrationMetal IonLigandsVisual IndicatorEnd Point DetectionMetal indicator ComplexColor ChangeEquivalence PointOO dihydroxyazo CompoundsEriochrome Black TCalmagiteIndicator Displacement

Aus Kapitel 5:

article

Now Playing

5.1 : Complexometric Titration: Overview

Complexometric Titration, Precipitation Titration, and Gravimetry

3.9K Ansichten

article

5.2 : Complexometric Titration: Ligands

Complexometric Titration, Precipitation Titration, and Gravimetry

739 Ansichten

article

5.3 : Properties of Organometallic Compounds

Complexometric Titration, Precipitation Titration, and Gravimetry

713 Ansichten

article

5.4 : EDTA: Chemistry and Properties

Complexometric Titration, Precipitation Titration, and Gravimetry

1.4K Ansichten

article

5.5 : EDTA: Conditional Formation Constant

Complexometric Titration, Precipitation Titration, and Gravimetry

537 Ansichten

article

5.6 : EDTA: Auxiliary Complexing Reagents

Complexometric Titration, Precipitation Titration, and Gravimetry

448 Ansichten

article

5.7 : EDTA: Direct, Back-, and Displacement Titration

Complexometric Titration, Precipitation Titration, and Gravimetry

1.7K Ansichten

article

5.8 : EDTA: Indirect and Alkalimetric Titration

Complexometric Titration, Precipitation Titration, and Gravimetry

555 Ansichten

article

5.9 : Complexometric EDTA Titration Curves

Complexometric Titration, Precipitation Titration, and Gravimetry

628 Ansichten

article

5.10 : Effects of EDTA on End-Point Detection Methods

Complexometric Titration, Precipitation Titration, and Gravimetry

190 Ansichten

article

5.11 : Masking and Demasking Agents

Complexometric Titration, Precipitation Titration, and Gravimetry

1.9K Ansichten

article

5.12 : Precipitation Titration: Overview

Complexometric Titration, Precipitation Titration, and Gravimetry

3.6K Ansichten

article

5.13 : Precipitation Titration Curve: Analysis

Complexometric Titration, Precipitation Titration, and Gravimetry

783 Ansichten

article

5.14 : Precipitation Titration: Endpoint Detection Methods

Complexometric Titration, Precipitation Titration, and Gravimetry

1.2K Ansichten

article

5.15 : Gravimetry: Overview

Complexometric Titration, Precipitation Titration, and Gravimetry

3.3K Ansichten

See More

JoVE Logo

Datenschutz

Nutzungsbedingungen

Richtlinien

Forschung

Lehre

ÜBER JoVE

Copyright © 2025 MyJoVE Corporation. Alle Rechte vorbehalten