Mordant Yellow 21
Name:C.I.Mordant Yellow 21,C.I.23130
Molecular Structure: Double azo class
C.I.Mordant Yellow 21,C.I.23130,CAS 6470-36-6,616.40,C26H14N6Na2O10,Chrome Fast Yellow R
Molecular Formula:C26H14N6Na2O10
Molecular Weight: 616.40
CAS Registry Number:6470-36-6
Manufacturing Methods : 2,2′-dinitrobenzidine double nitrogen, and 2-Hydroxybenzoic acid(2 Moore) coupling.
Properties and Applications: red light yellow. Soluble in water for yellow brown. In concentrated sulfuric acid for cherry red, yellow brown precipitate after dilution. Dye aqueous solution with concentrated hydrochloric acid have yellow brown precipitation; Sodium hydroxide solution with strong for red light brown.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 5 | 5-6 | 4 | 5 | 4-5 | 5 | |
List of Suppliers:
Chrome Fast Yellow R( Francolor Pigments SA )