CAS number：1787-61-7 molecular formula：C20H12N3NaO7S
能溶于热水，冷却后成红棕色溶液，稍溶于醇，并呈棕光品红色；微溶于丙酮。遇过量盐酸生成棕紫色沉淀；在浓硝酸中呈枯桔黄色；遇氢氧化钠呈深蓝色，后变红色，溶于浓硫酸成蓝黑色溶液，稀释后生成棕色沉淀。水中溶解度（90℃）为25g/L。染色时遇铜；铁，色光影响较大。测定水硬度用指示剂，金属络合指示剂，测定钙、镁、钡、姻、锰、铅、钪、锶、锌和锆。 Mordant Black 11 is a dye suitable as a metal indicator. It is used as an indicator for complexometric titrations.It functions as an acid-base indicator. Eriochrome Black T forms complex with Ca2+ and Mg2+, but it binds more strongly to Mg2+ ions.
| Chinese alias | 羊毛铬黑T | ||
| English alias | Cromal Deep Black NS | Diamond Black PT | Eriochrom- schwarz T | Superchrome Black TS | Omega Chrome Black TDW | Acid Chrome Black Special | Chrome Black TK | Man Ver Indicator | Chromogene Black ETO-CF | BDBM29135 | Chromocard Black T | Eriochrome Black | ||
| CAS number | 1787-61-7 | molecular formula | C20H12N3NaO7S |
| molecular weight | 461.38 g/mol | Exact mass | 0.2% |
| PSA | 177.000 Ų | logp | - |
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