Acid Blue 5
Name:C.I.Acid Blue 5,C.I.42052
Molecular Structure: triarylmethane class
C.I.Acid Blue 5,C.I.42052,CAS 3374-30-9,684.82,C37H36N2O7S2
Molecular Formula:C37H36N2O7S2
Molecular Weight: 684.82
CAS Registry Number:3374-30-9
Manufacturing Methods : 3-Hydroxybenzaldehyde (1 Moore) and N-benzyl-N-ethylbenzenamine (2 Moore) condensation, its product two stlfonation, oxidation, and finally as calcium salting out.
Properties and Applications: colourful green light blue. Soluble in water for green light blue, soluble in ethanol for light green. The strong sulfuric acid for light in the dark yellow; Diluted turquoise and the emergence of a precipitation. In water solution to join sodium hydroxide, low temperature when the same color, heat into deep purple.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 2-3 | 3-4 | 3-4 | 3 | 3 | |||
| AATCC | 3 | 3 | 2 | 2 | ||||
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