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 at Dawnscientific.com
Eriochrome black T is a dark violet powder with green metallic sheen. It is a hydroxyl-arylazo dye and is generally supplied as a monosodium salt. Its molecular formula is C20H12N3NaO7S. Eriochrome Black T is soluble in water and alcohol, but insoluble in common organic solvents. It functions as an acid-base indicator. Eriochrome Black T ACS is also known as Solochrome Black T, Mordant Black 11, 3-Hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic Acid Monosodium Salt. It turns red when it forms a complex with calcium, magnesium, or other metal ions.
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Applications
- Eriochrome Black T is used as an indicator for complexometric titrations.
- It is used for the determination of calcium and magnesium by titration with EDTA.
- Eriochrome Black T 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
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