Acid Blue 48
Name:C.I.Acid Blue 48,C.I.42770
Molecular Structure: triarylmethane class
Molecular Formula:C37H28N3NaO6S2
Molecular Weight: 697.76
CAS Registry Number:30586-15-3/1324-77-2
Manufacturing Methods : C.I. Solvent Blue 23 (C.I. 42760) disulfonated, and translated into sodium salt.
Properties and Applications: blue. Soluble in cold water and hot water for the blue, soluble in ethanol for green light blue. The strong sulfuric acid for red brown, after diluted blue, blue purple with precipitation.
Standard( Silk ) | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 3 | 2-3 | 2 | 3 |
List of Suppliers:
Methyl Blue water soluble( Geigy Co. Ltd )