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Solubilised Vat Blue 8

Name:C.I.Solubilised Vat Blue 8,C.I.738001

Molecular Structure: Indigo class

C.I.Solubilised Vat Blue 8,C.I.738001,CAS 4086-05-9,592.34,C20H13Cl2NNa2O9S2

C.I.Solubilised Vat Blue 8,C.I.738001,CAS 4086-05-9,592.34,C20H13Cl2NNa2O9S2

Molecular Formula:C20H13Cl2NNa2O9S2

Molecular Weight: 592.34

CAS Registry Number:4086-05-9

Manufacturing Methods :  (a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Blue 8 leuco; (b) in the Pyridine with metal (such as copper, iron, zinc, etc) and Sulfur trioxide source (such as Sulfur trioxide, Chlorosulfonic acid or Methyl chlorosulfonate, etc.) processing  C.I. Vat Blue 8. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out.

Properties and Applications:  blue to navy blue. Soluble in water.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 4-5 4 5-6 4 4

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