ERIOCHROME BLACK T, AR GRADE

Eriochrome Black T, AR Grade is a brownish-black powder commonly used as a complexometric indicator in analytical titration methods. The substance is a hydroxyl-arylazo dye and is typically delivered as a monosodium salt. Its characteristic behavior with metal ions makes it very useful in quantitative analytical methods. The dye is widely used in complexometric titrations where precise determination of titration end point is essential for reliable results. In metal ion reactions, Eriochrome Black T yields distinct color changes that are useful in identifying complex formation and titration completion. The material dissolves in water and alcohol but it is not soluble in common organic solvents, which enables handy preparation for usual analytical applications. Known for its dark violet appearance with a green metallic sheen in pure form, the reagent is appreciated for reliable indicator performance and uniform reaction sensitivity in analysis of metal ions and in testing procedures in the laboratory.

Complexometric indicator dye for titration and metal ion analysis procedures.