Acid Red 47
Name:C.I.Acid Red 47,C.I.27300
Molecular Structure: Double azo class
C.I.Acid Red 47,C.I.27300,CAS 6226-88-6,842.66,C27H16N4Na4O13S4,Brilliant Croceine 9B
Molecular Formula:C27H16N4Na4O13S4
Molecular Weight: 842.66
CAS Registry Number:6226-88-6
Manufacturing Methods : 7-Aminonaphthalene-1,3-disulfonic acid diazotization and coupling O-Methylaniline, methanesulfonic acid hydrolyzable group, and diazotization, and with 7-Hydroxynaphthalene-1,3-disulfonic acid coupling.
Properties and Applications: colourful red blue light. Soluble in water for product red, not soluble in alcohol. In the strong sulfuric acid as dark blue, diluted into product red. In water solution to join strong hydrochloric acid by product red to wine red; Add thick sodium hydroxide solution for dark brown.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4 | 2-3 | 3 | 2-3 | 1 | 2-3 | ||
List of Suppliers:
Brilliant Croceine 9B( Carbotex Consultants )