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Solubilised Vat Blue 2

Name:C.I.Solubilised Vat Blue 2,C.I.73046

Molecular Structure: Indigo class

C.I.Solubilised Vat Blue 2,C.I.73046,CAS 6537-70-8,695.05,C16H6Br2Cl2N2Na2O8S2

C.I.Solubilised Vat Blue 2,C.I.73046,CAS 6537-70-8,695.05,C16H6Br2Cl2N2Na2O8S2

Molecular Formula:C16H6Br2Cl2N2Na2O8S2

Molecular Weight: 695.05

CAS Registry Number:6537-70-8

Manufacturing Methods : (a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Blue 2 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 2. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out.

Properties and Applications: green light blue. Soluble in water

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 4-5 3 3-4 3 2-3

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