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Vat Blue 5 | Vat Blue 4B
Name: C.I.Vat Blue 5,C.I.73065
Molecular Structure: Indigo class
C.I.Vat Blue 5,C.I.73065,CAS 2475-31-2,577.85,C16H6Br4N2O2,Bromo Indigo,Indigo Blue 4B,Bromo Indigo 2B
Molecular Formula: C16H6Br4N2O2
Molecular Weight: 577.85
CAS Registry Number: 2475-31-2
Vat Blue 5 | Vat Blue 4B
Name: C.I.Vat Blue 5,C.I.73065
Molecular Structure: Indigo class
C.I.Vat Blue 5,C.I.73065,CAS 2475-31-2,577.85,C16H6Br4N2O2,Bromo Indigo,Indigo Blue 4B,Bromo Indigo 2B
Molecular Formula: C16H6Br4N2O2
Molecular Weight: 577.85
CAS Registry Number: 2475-31-2
Vat Blue 5 | Vat Blue 4B
Properties and Applications
Blue. Dark blue powder. Etanol and insoluble in water, soluble in Xylene, Nitrobenzene and 1, 2, 3, 4 – Tetrahydronaphthalene. Alkaline reduction leuco for yellow; Acid reduction leuco for pale yellow. In concentrated sulfuric acid to blue light green, diluted into blue, and the emergence of precipitation. Used for cotton of jig dyeing and yarn dyeing, dyeing hair blue cloth color turquoise blue. Is the important dye printing, can direct printing, also can discharge printing and resist printing. It can also be used for viscose, silk and wool dyeing, levelness and affinity are good. Can be processed into an organic pigment
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 5 | 2 | 4-5 | 4 | 3-4 | 4-5 | 5 |
| AATCC | 5 | 2 | 4-5 | 3-4 | 4 | ||
