Vat Brown 3, Vat Brown R

Vat Brown 3

Product Name: Vat Brown R

C.I. Name: Vat Brown 3

CAS No.: 131-92-0

Application: Mainly used for dyeing and printing of cotton fabric, viscose fibers, silk, polyester, viscose, and polyester cotton.

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Vat Brown 3 Chemical Property:

Vat brown 3 is dark brown powder and insoluble in water, slightly soluble in xylene. It appears dark wine red in concentrated sulfuric acid and produces a reddish brown flocculent precipitate after dilution. It appears red brown in alkaline solution of sodium hydrosulfite and yellow brown in acidic solution.

Vat Brown 3 Appliation

Vat brown R C.I. Vat brown 3 is mainly used for dyeing cotton fibers with good uniformity and affinity. It is also used for dyeing blended fabrics such as polyester cotton, polyester viscose, and viscose. The polyester component has slight staining. It can be dyed by the same bath hot melt method with dispersed dyes, or by the two bath method. It can also be used to blend and dye various shades of brown with reduced brown G, reduced brown GG, reduced brown BR, etc. It is also used to prepare organic pigments.

Vat Brown 3 Specification

» Product name: Vat Brown 3

» Type: Vat Dyes

» CAS NO.: 131-92-0

» MF: C42H23N3O6

Vat Brown 3 Physical Propertie

Basic Information
Product Name	Vat Brown R
Colour Index	C.I. vat brown 3
CAS No.	131-92-0
Specification
Shade	Similar With Standard
Strength	100%
Appearance	Powder .
Moisture %≤	1.20
Insoluble Matter %≤	0.20
Application	Printing and dyeing cotton