Direct Yellow 41
Name:C.I.Direct Yellow 41,C.I.29005
Molecular Structure: Double azo class
C.I.Direct Yellow 41,C.I.29005,CAS 8005-53-6,648.56,C28H22N6Na2O8S
Molecular Formula:C28H22N6Na2O8S
Molecular Weight: 648.56
CAS Registry Number:8005-53-6
Manufacturing Methods : 4-Aminobenzenesulfonic acid diazo, and 2-Amino-4-methylanisole coupled to compounds (A); 4-Nitrobenzenamine diazo, coupled with 2-Hydroxybenzoic acid, and then will the nitro reduction for amino, compound (B). Then will molecules of the A and B mixture light gasification.
Properties and Applications: red light yellow. Soluble in water for golden brown, slightly soluble in alcohol. The strong sulfuric acid for blu-ray red, diluted becomes shallow, with brown precipitation. The dye solution to join strong hydrochloric acid have sauce red precipitate; Add thick sodium hydroxide solution with gold orange precipitation. Used for cellulose fabric, silk, polyamide fiber fabric dyeing and printing, paper color
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3 | 4 | 5 | 2-3 | 2 | ||
| AATCC | 5 | 5 | 4 | 1 | 3 | ||
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