Acid Yellow 38
Name:C.I.Acid Yellow 38,C.I.25135
Molecular Structure: Double azo class
C.I.Acid Yellow 38,C.I.25135,CAS 13390-47-1,686.69,C28H24N4Na2O8S3,Milling Yellow O,Light Yellow 2R DBL
Molecular Formula:C28H24N4Na2O8S3
Molecular Weight: 686.69
CAS Registry Number:13390-47-1
Manufacturing Methods : 2-(2-Sulfo-4-aminophenylthio)-5-aminobenzenesulfonic acid double nitriding, and phenol (2 Moore) coupling, and then under pressure to the hydroxyl ethyl with monomer (VCM).
Properties and Applications: yellow. Soluble in water and ethanol for green light yellow, slightly soluble in acetone. The strong sulfuric acid for cherry red, diluted into a green light yellow. In aqueous solution is to add strong hydrochloric acid have olive to yellow brown precipitation; Add thick sodium hydroxide solution yellowish after precipitation. Used for wool, silk, polyamide fiber dyeing and printing directly. Also used in paper and leather shading.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5 | 4-5 | 4 | 4 | 3-4 | 4 | 4-5 | |
| AATCC | 5 | 3-4 | 3-4 | 4 | 3-4 | 3-4 | 4-5 | |
List of Suppliers:
Kayanol Milling Yellow O (Nippon Kayak u Co Ltd)
Milling Light Yellow 2R DBL(Classic Dyestuffs Inc)
Milling Yellow O(Classic Dyestuffs Inc)
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