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必应染料-您身边的染料专家

Vat Blue 3

Name:C.I.Vat Blue 3,C.I.73055

Molecular Structure: Indigo class

C.I.Vat Blue 3,C.I.73055,CAS 6492-73-5,341.16,C16H9Br2N2O2,Mitsui Tsuya Indigo RN

C.I.Vat Blue 3,C.I.73055,CAS 6492-73-5,341.16,C16H9Br2N2O2,Mitsui Tsuya Indigo RN

Molecular Formula:C16H9Br2N2O2

Molecular Weight: 341.16

CAS Registry Number:6492-73-5

Manufacturing Methods : Indigo in a sulphuric 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid (FIAT 764 and 1313); (b) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- or 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- white (C.I. 73001) and bromine in the presence of water response; (C) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- and bromine in the presence of Pyridine or starch reaction, or in aqueous hydrogen bromide, hydrogen chloride or the presence of sulfuric acid reaction; (d) 5-Bromo-3-indolinone and 3H-indol-3-one condensation.

Properties and Applications:  red light blue to red light navy blue. Dark blue powder. Soluble in toluene as blue, not soluble in ethanol. In concentrated sulfuric acid for dark olive green, blue precipitation after dilution. Alkaline reduction leuco for yellow; Acid reduction leuco colorless. Mainly used for cotton fabric dyeing, also can be used for cotton fabric direct printing, resist printing and discharge printing, but also can be used for wool dyeing.

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

List of Suppliers:

Mitsui Tsuya Indigo RN( Mitsui Toatsu Chemicals Ltd )


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