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Vat Blue 31

Name:C.I.Vat Blue 31,C.I.67105

Molecular Structure: anthraquinones

C.I.Vat Blue 31,C.I.67105,CAS 6371-50-2,605.62,C36H19N3O5S

C.I.Vat Blue 31,C.I.67105,CAS 6371-50-2,605.62,C36H19N3O5S

Molecular Formula:C36H19N3O5S

Molecular Weight: 605.62

CAS Registry Number:6371-50-2

Manufacturing Methods : 1-Amino-4-nitro-2-anthraquinonecarboxylic acid and 2-Amino-3-chloroanthracene-9,10-dione condensation, make its formation mercaptan, then cyclization, reduction and Benzoylation.

Properties and Applications: dark blue. Blue black powder. In concentrated sulfuric acid to yellow. Alkaline reduction leuco for dark purple; Acid reduction leuco for red light brown. Direct sex good, good levelness. Used for cotton fabric dyeing, can also be used to resist and discharge

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 5 4-5 7-8 4-5 4-5 4-5 5

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2 Responses to “Vat Blue 31”

  1. […] Methods : with C.I. Vat Blue 31 (C.I. 67105) the same, just in the last acylation, the use of 3-(Trifluoromethyl)benzoyl […]

  2. […] C.I.Vat Blue 31 […]

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