Acid Red 26
Name:C.I.Acid Red 26,C.I.16150
Molecular Structure: Single azo class
C.I.Acid Red 26,C.I.16150,CAS 3761-53-3,480.42,C18H14N2Na2O7S2,Scarlet 2R,Ponceau R,Acid Scarlet,Ponceaux RH,Ponceau 2R
Molecular Formula:C18H14N2Na2O7S2
Molecular Weight: 480.42
CAS Registry Number:3761-53-3
Manufacturing Methods : 2,4-Dimethylbenzenamine diazo, coupled with 3-Hydroxynaphthalene-2,7-disulfonic acid.
Properties and Applications: colourful red yellow light. Soluble in water for red orange to red, hardly soluble in ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid are blushing to wine red, yellow and red for diluted. In water solution to join strong hydrochloric acid have red precipitate; Join nitric acid by bright red to orange; Add thick sodium hydroxide solution into orange brown; Add 10% sodium hydroxide solution for palm red.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 3-4 | 5 | 4 | 1 | 4 | 3 | 2 |
| AATCC | 4 | 2 | 2 | 1-2 | 1-2 | 1-2 | 2-3 | 2-3 |
List of Suppliers:
ABCOL Scarlet 2R( Abbey Color Inc. )
Acid Scarlet ( Joint Stock Company ‘Coioros’ )
Aizen Ponceaux RH ( Hodogaya Chemical Co Ltd )
Bemacid Scarlet 2R( Berncolors-Poughkeepsie Inc )
Daiwa Ponceau R ( Kaseihin Kogyo Kyokai )
Triacid Ponceau 2R(Chemische Fabriek Triade BV)