Eriochrome blue black R/Mordant Black 17/Acid chrome blue black/Palatine chrome black 6BN；Calcon

English Name:Eriochrome blue black R；Mordant Black 17；Acid chrome blue black；Palatine chrome black 6BN；Calcon；Chrome blue black R；Anthracene blue black；Solochrome dark blue

Other names: elay chrome blue black R; Acid mordant black R; Acid chrome blue black R; Acid mordant blue black; Alizarin blue black; Chrome blue black R; Calcium reagent; Media black 17; Sodium 3-hydroxy-4 - (2-hydroxy-1-naphthalenylazo) - 1-naphthalenesulfonate; Palace black dye; Calcein

CAS No.: 2538-85-4

C20H13N2NaO5S=416.39

Grade: ind

Sensitivity test: acceptable

Ethanol dissolution test: qualified

Physicochemical Properties: brown black or dark brown powder, soluble in water and ethanol. The aqueous solution is purple, and there are brown precipitates in the aqueous solution with hydrochloric acid. The alcohol solution is blue red, the concentrated nitric acid solution is yellow, the sodium hydroxide solution is jujube red, and the sulfuric acid solution is blue. Dilute with water to precipitate red precipitates. The maximum absorption wavelength is 569nm. Irritating

Purpose: biochemical research. Complexation indicator. Determine calcium, magnesium, cadmium, manganese and zinc. Measure aluminum by fluorescence analysis. Determination of water hardness

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