Preparation
(a) 1,5-Dihydroxy-4,8-dinitro-9,10-dioxo-9,10-dihydroanthracene-2,6-disulfonic acidreduction, and then will be generated 1,5-dihydroxy 4,8-Diamino anthraquinone-2-sulfonic acid Leucooxidation, and translated into sodium salt; (b) 1,5-Diamino-4,8-dihydroxyanthracene-9,10-dionewith 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 acidwith sodium sulfide; (d) 1,5-Dimethoxy-4,8-dinitroanthraquinoneand 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.
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.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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|
Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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5
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2
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1-2
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2-3
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1-2
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1-2
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2
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1-2
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AATCC
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4
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1-2
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1-2
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2
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1
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1
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2
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2
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