Chrome Blue /C.I. 16675/Acid Chrome Blue K

English Name: Chrome Blue K; C.I. 16675； Acid Chrome Blue K； 4,5-Dihydroxy-3-[(2-hydroxy-5-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt

Other names: Acid Chrome Blue K; 4,5-dihydroxy-3 - [(2-hydroxy-5-benzenesulfonic acid sodium) azo] - 2,7-naphthalene disulfonic acid sodium; 1,8-dihydroxy - (2-hydroxy-5-sodium sulfonate-1-azobenzene) - 3,6-sodium disulfonate; Acid mordant blue K; 7 - (2-hydroxy-5-sulfophenylazo) chromotropic acid sodium salt; 7 - (o-hydroxybenzene-5-sulfonic acid sodium azo) - 1,8-dihydroxynaphthalene-3,6-disulfonic acid sodium; O-aminophenol sodium one-to-one sulfonate azo-1,8-dicarboxylic acid sodium 3,6-disulfonic acid sodium; 4,5-dihydroxy-3 - [(2-hydroxy-5-benzenesulfonic acid sodium) azo] - 2,7-naphthalene disulfonic acid sodium

CAS No.: 3270-25-5

C16H9N2Na3O12S3=586.41

Grade: complexation indicator

Water dissolution test: acceptable

Sensitivity test: acceptable

Burning residue (calculated by sulfate): ≤ 45.0%

 Physicochemical Properties: brownish red or dark red powder. Dissolved in water and ethanol, the aqueous solution is rose red, and the alkaline solution is gray blue

Purpose: biochemical research. Complexation indicator. It is used to determine calcium, chromium, magnesium, manganese, lead and zinc. It is widely used in metallurgical analysis, soil analysis, plant analysis, etc.

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