Azoic Diazo Component 121
Name:C.I.Azoic Diazo Component 121
Molecular Structure:
C.I.Azoic Diazo Component 121,CAS 17481-27-5,166.18,C8H10N2O2
Molecular Formula:C8H10N2O2
Molecular Weight: 166.18
CAS Registry Number:17481-27-5
Manufacturing Methods : 1-Methoxy-2-nitrobenzene with Chloromethyl methyl ether methylation, hydrolysis, oxidation, phosphorus trichloride chloride, ammonia solution, and then with sodium sulfide..
Properties and Applications: white powder. Slightly soluble in water, but soluble in hydrochloric acid. Mainly used for the cotton fabric dyeing and printing, also can be used in viscose fabric dyeing. Dyeing cotton, and the color of phenol AS-BS, AS-BO coupled dyed pink, and the color of phenol AS-D coupled dyed red. This product matches ability medium, coupling speed is slow, matches for 5 ~ 6.5 pH. Dyed product color bright, good fastness.
The fastness properties in cotton:
| Coupling components | Fast light | Soda boiling | Oxygen bleaching | Ironing | Chlorine bleaching | ||
| ISO | AATCC | ISO | |||||
| 1/3N | 2N | 2N | |||||
| 12 | 4 | 6 | 3 | 4 | 3-4 | ||
| 23 | 5 | 6-7 | 3 | 4 | 3-4 | ||
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