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Eriochrome is to do titration indicator. Dubbed in aqueous solution or alcohol-soluble when used for the determination of calcium, magnesium, manganese, zinc and other metal ions, measured water hardness.
Joseph P. Brown.; Paul S. Dietrich. Mutagenicity of selected sulfonated azo dyes in the Salmonella/microsome assay: Use of aerobic and anaerobic activation procedures.Mutation Research/Genetic Toxicology.1983, 116, (3-4), 305-315.
Harvey. Diehl.; Frederick. Lindstrom. Eriochrome Black T and Its Calcium and Magnesium Derivatives.Anal. Chem.1959, 31, (3), 414-418.
Hazard Statements: H319
Causes serious eye irritation.
Precautionary Statements: P260-P201-P280i-P304+P340-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear eye/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.