Acid Blue 19
Name:C.I.Acid Blue 19,C.I.45205
Molecular Structure: Xanthene class
Molecular Formula:C37H31Cl2N2NaO8S
Molecular Weight: 757.61
CAS Registry Number:1324-74-9
Manufacturing Methods : 4-Ethoxybenzenamine and 3′,4′,6′,7′-Tetrachlorofluoran reaction, the products products, and translated into sodium salt.
Properties and Applications: red light blue. Soluble in water and dark for ethanol. The strong sulfuric acid for dark red jujube, diluted into blue precipitation. Sodium hydroxide solution in aqueous solution to join a red light purple precipitation.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 3-4 | 3-4 | 4 | 3 | 1-2 | 2-3 |
List of Suppliers:
Fast Acid Blue R( Farbwerke vorm. Meister Lucius &Brtining )
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