Direct Orange 75
Name:C.I.Direct Orange 75,C.I.17840
Molecular Structure: Single azo class
C.I.Direct Orange 75,C.I.17840,CAS 6417-294,603.58,C30H22N5NaO6S,Diazobrilliantorange GR ex
Molecular Formula:C30H22N5NaO6S
Molecular Weight: 603.58
CAS Registry Number:6417-294
Manufacturing Methods : aniline diazo, and 6-[3-(3-Aminobenzamido)benzamido]-1-naphthol-3-sulfonic acid coupling.
Properties and Applications: red light orange. Slightly soluble in water and ethanol for orange. In the strong sulfuric acid to red, orange precipitation after diluted. The dye solution to join strong hydrochloric acid have red orange precipitation; Add thick chlorine oxidation sodium solution for palm light orange. Used for the cellulose fibre and silk dyeing, Exhaust dyeing good, also can be used for leather color.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 5 | 1-2 | 2-3 | 3-4 | ||
| AATCC | 5 | 5 | 3 | 2-3 | 5 | ||
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