dye|World dye variety

Name:C.I.Acid Blue 3,C.I.42051

Molecular Structure: triarylmethane class

C.I.Acid Blue 3,C.I.42051,CAS 3536-49-0,560.68,C27H32N2O7S2,Greenish Blue,Patent blue,Blue V Calcium

Molecular Formula:C₂₇H₃₂N₂O₇S₂

Molecular Weight: 560.68

CAS Registry Number:3536-49-0

Manufacturing Methods : (a) 3-Nitrobenzaldehyde and N,N-diethylbenzenamine (2 Moore) condensation, then reduction, then the amino diazotization and then translate into hydroxyl compound, and then two stlfonation, finally will product into calcium salt, and segregation and oxidation; (b)3-Hydroxybenzaldehyde and N,N-diethylbenzenamine (2 Moore) condensation, and then two stlfonation, into calcium salt and oxidation. The dyes can also be as sodium salting out.

Properties and Applications: colourful green light blue. Soluble in cold water and hot water for the blue, soluble in ethanol for green light blue. The strong sulfuric acid for olive tan. In water solution to join sodium hydroxide low temperature discoloration, heat into deep purple.

List of Suppliers:

Bright Greenish Blue(Simpsons (UK) Ltd)

Eurocert Patent blue ( Warner-Jenkinson Co )

Patent Blue V(Simpsons (UK) Ltd)

Patent Blue V Calcium Salt 36017( Anstead International )

Patent Blue V Calcium Salt 90146( Anstead International )

Patent Blue V Sodium Salt 36001 ( Anstead International )