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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.
Though the determination of calcium and magnesium by complexometric titration with standard solutions of disodium dihydrogen tetraacetate, utilising Eriochrome Black T as indicator is widely accepted and quite adequately understood, it, like other complexometric titration methods, suffers from the limitations of having an indistinct endpoint (where a photometric titrator is needed to provide ...
Eriochrome Black T: Chrome black Mordant black 11 14645 azo 1787-61-7: Erythrosin B: Red No. 3 Food red 14 Acid red 51 45430 fluorone 16423-68-0: Ethyl eosin Alcohol soluble eosin Solvent red 45 45386 fluorone 6359-05-3: Ethyl β-apo-8′-carotenoate Carophyll yellow Food orange 7: 40825 carotenoid 1109-11-1: Ethyl Green: 42590 triarylmethane ...
A complexometric indicator is an ionochromic dye that undergoes a definite color change in presence of specific metal ions. [1] It forms a weak complex with the ions present in the solution, which has a significantly different color from the form existing outside the complex. Complexometric indicators are also known as pM indicators.
Eriochrome Black T; M. Martius yellow; N. Naphthol yellow S; NBQX; 1-Nitronaphthalene; 2-Nitronaphthalene This page was last edited on 1 January 2014, at 20:41 ...
Complexometric titration (sometimes chelatometry) is a form of volumetric analysis in which the formation of a colored complex is used to indicate the end point of a titration. Complexometric titrations are particularly useful for the determination of a mixture of different metal ions in solution. An indicator capable of producing an ...
Titration. A burette and Erlenmeyer flask (conical flask) being used for an acid–base titration. Titration (also known as titrimetry[1] and volumetric analysis) is a common laboratory method of quantitative chemical analysis to determine the concentration of an identified analyte (a substance to be analyzed).
Acid Orange 7. Acid orange 19. Acid orange 20. Acid Red 13. Acid red 88. Alcian yellow. Alizarine Yellow R. Allura Red AC. Amaranth (dye)