Acid Red 187
Name:C.I.Acid Red 187,C.I.16265
Molecular Structure: Single azo,Metal Complexes
C.I.Acid Red 187,C.I.16265,CAS 6717-29-9,603.56,C20H19N3Na2O10S3
Molecular Formula:C20H19N3Na2O10S3
Molecular Weight: 603.56
CAS Registry Number:6717-29-9
Manufacturing Methods : 3-Amino-N,N-diethyl-4-methoxybenzenesulfonamide diazo, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling, and then in water solution and sulfuric acid chromium common heating (130 ° C keep 2 hours, 135 ° C keep 2 hours), in contain alkali type sulphuric acid chromium dry for (in chrome complexation processes medium armor oxygen radicals displacement for hydroxyl).
Properties and Applications: blue-ray red.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 6-7 | 3-4 | 4 | 2 | 3-4 | |||
| AATCC | 5-6 | 3-4 | 4 | 1 | 4 | |||
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