Eriochrome Black T ACS

Buy Eriochrome Black T ACS (1787-61-7) MF: C20H12N3NaO7S | MW: 461.38. Get High Quality Eriochrome Black T ACS (1787-61-7) from ChemieR.

Eriochrome Black T ACS is a deep purple powder that exhibits a shimmering green metallic appearance. It is classified as a hydroxyl-arylazo dye and is commonly available in the form of a monosodium salt. Its chemical formula is C20H12N3NaO7S. Eriochrome Black T is soluble in both water and alcohol, but it does not dissolve in typical organic solvents. This compound serves as an acid-base indicator. Additionally, Eriochrome Black T ACS is recognized by alternative names such as Solochrome Black T, Mordant Black 11, and 3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic Acid Monosodium Salt. When it forms a complex with calcium, magnesium, or other metal ions, it undergoes a color change to red. Eriochrome black T ACS grade, is used in laboratory settings for various purposes. ACS grade Eriochrome black T is manufactured to meet the purity standards set by the American Chemical Society (ACS), ensuring high quality and consistency.

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Application :

• Eriochrome Black T ACS is used as an indicator for complexometric titrations.
• It is used for the determination of calcium and magnesium by titration with EDTA.
• It has also been used to detect the presence of rare earth metals.
• It is mainly used as an indicator in ethylenediaminetetraacetic acid (EDTA) method to determine hardness of water.

Benefits :

• Meet the toughest regulatory standards for quality and purity.
• Strong acid base indicator
• Safe and easy to handle