Direct Orange 32
Name:C.I.Direct Orange 32,C.I.20215
Molecular Structure: Double azo class
Molecular Formula:C26H18N5NaO5S2
Molecular Weight: 567.57
CAS Registry Number:5915-59-3
Manufacturing Methods : 2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid diazo, Coupled with resorcinol; aniline diazo, and the generation of single accidentally coupled nitrogen compounds.
Properties and Applications: orange. Soluble in water for yellow brown, slightly soluble in alcohol. The strong sulfuric acid for orange red to brown, after dilute for orange brown. The dye solution with strong hydrochloric acid have orange brown precipitation; Join a wine red, hydrogen oxide precipitation. Used for cellulose fiber dyeing, good levelness, white good sex.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4-5 | 2 | 1-2 | 3 | 3 |
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