ALIZARIN SAFIROL SE

Preparation

(a) 1,5-Dihydroxy-4,8-dinitro-9,10-dioxo-9,10-dihydroanthracene-2,6-disulfonic acid?reduction, and then will be generated 1,5-dihydroxy 4,8-Diamino anthraquinone-2-sulfonic acid Leuco?oxidation, and translated into sodium salt; (b) 1,5-Diamino-4,8-dihydroxyanthracene-9,10-dione?with low concentration hair smoke sulfuric acid in 120 ~ 130 ℃ sulphonated; (C) 1,5-Dihydroxy-4,8-dinitro-9,10-dioxo-9,10-dihydroanthracene-2,6-disulfonic acid?with sodium sulfide; (d) 1,5-Dimethoxy-4,8-dinitroanthraquinone?and sodium sulfite deoxidization reaction, then use 70% sulfuric acid hydrolysis; (e)1,5-Diamino-4,8-dihydroxyanthracene-9,10-dione in the presence of boric acid with hair smoke sulfuric acid were single; (f) will C.I. Acid Blue 45 (C.I. 63010) with the reducing agent part, take off the acid.

Safety Profile

Mutation data reported. Whenheated to decomposition it emits toxic vapors of NOx andSOx.

Properties and Applications

blue. Blue powder. Slightly soluble in ethanol and soluble fiber element, insoluble in acetone, benzene, carbon tetrachloride, pottery, especially solvent. Strong sulfuric acid in a yellow olive green, diluted into purple. Mainly used for dyeing wool carpet, also used in wool, silk, polyamide fiber fabric dyeing, can also be used in leather dyeing.