Name:C.I.Direct Yellow 26,C.I.25300
Molecular Structure: Double azo class
Molecular Weight: 584.45
CAS Registry Number:2829-42-7
Manufacturing Methods : (1) 4-Nitrobenzenamine diazo, coupled with 2-Hydroxybenzoic acid, and then will the nitro reduction; (2) N-(4-aminophenyl)acetamide diazo, coupled with 2-Hydroxybenzoic acid, and then hydrolysis usions amino, and finally to will by (1) or (2) get the amino nitrogen accidentally light gasification.
Properties and Applications: red light yellow. Soluble in water (for green light yellow), ethanol and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in orange, diluted for dark purple to black; In nitric acid solution for purple, turned into brown. Used for cellulose fiber dyeing, leather, paper and biological shading. Dyeing, 40 to 60 ° C affinity is the largest, Exhaust dyeing, good levelness. Also can be used for silk and polyamide fiber dyeing. In dyeing green dark colored light sous; Iron ion in dark colored red. Hard to sensitive.
|Standard||Acid Resistance||Alkali Resistance||Light Fastness||Soaping||Water|
List of Suppliers:
Direct Fast Brilliant Yellow 2G Tianjin Yadong Group
Direct Brilliant Yellow 2G (Sinochem Hebei Imp & Exp Corp)
Direct Brilliant Yellow 2G (Brighten Colorchem BV)
Direct Light Yellow 2G 175(Sinochem Tianjin Imp Exp Corp)
Dycosdirect Brilliant Yellow 2G(Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)
Yellow 2G(Hangzhou Dikai Chemical Co Ltd)