СВЯЖИТЕСЬ С НАМИ

Войдите в систему

5.1 : Complexometric Titration: Overview

Complexometric titrations involve reactions of ligands with suitable metal ions to generate metal–ligand complexes.

The titration is often performed using a visual indicator, which first forms a relatively weak metal–indicator complex that gives the solution an initial color.

As the titration approaches the equivalence point, all free metal ions are consumed, and any excess ligand displaces the indicator from the metal–indicator complex.

The rapid color change that follows marks the end point of the titration.

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.

Теги

Complexometric Titration Metal Ion Ligands Visual Indicator End Point Detection Metal indicator Complex Color Change Equivalence Point O O dihydroxyazo Compounds Eriochrome Black T Calmagite Indicator Displacement

Из главы 5:

article

Now Playing

5.1 : Complexometric Titration: Overview

Complexometric Titration, Precipitation Titration, and Gravimetry

5.5K Просмотры

article

5.2 : Complexometric Titration: Ligands

Complexometric Titration, Precipitation Titration, and Gravimetry

869 Просмотры

article

5.3 : Properties of Organometallic Compounds

Complexometric Titration, Precipitation Titration, and Gravimetry

924 Просмотры

article

5.4 : EDTA: Chemistry and Properties

Complexometric Titration, Precipitation Titration, and Gravimetry

1.7K Просмотры

article

5.5 : EDTA: Conditional Formation Constant

Complexometric Titration, Precipitation Titration, and Gravimetry

698 Просмотры

article

5.6 : EDTA: Auxiliary Complexing Reagents

Complexometric Titration, Precipitation Titration, and Gravimetry

526 Просмотры

article

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

Complexometric Titration, Precipitation Titration, and Gravimetry

2.3K Просмотры

article

5.8 : EDTA: Indirect and Alkalimetric Titration

Complexometric Titration, Precipitation Titration, and Gravimetry

795 Просмотры

article

5.9 : Complexometric EDTA Titration Curves

Complexometric Titration, Precipitation Titration, and Gravimetry

751 Просмотры

article

5.10 : Effects of EDTA on End-Point Detection Methods

Complexometric Titration, Precipitation Titration, and Gravimetry

239 Просмотры

article

5.11 : Masking and Demasking Agents

Complexometric Titration, Precipitation Titration, and Gravimetry

2.3K Просмотры

article

5.12 : Precipitation Titration: Overview

Complexometric Titration, Precipitation Titration, and Gravimetry

5.1K Просмотры

article

5.13 : Precipitation Titration Curve: Analysis

Complexometric Titration, Precipitation Titration, and Gravimetry

1.0K Просмотры

article

5.14 : Precipitation Titration: Endpoint Detection Methods

Complexometric Titration, Precipitation Titration, and Gravimetry

1.6K Просмотры

article

5.15 : Gravimetry: Overview

Complexometric Titration, Precipitation Titration, and Gravimetry

4.5K Просмотры

See More

Конфиденциальность

Условия эксплуатации

Политика

СВЯЖИТЕСЬ С НАМИ

РЕКОМЕНДОВАТЬ БИБЛИОТЕКЕ

НОВОСТИ JoVE

Исследования

Образование

АВТОРЫ

Библиотекарь

О JoVE

Авторские права © 2025 MyJoVE Corporation. Все права защищены