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Vat Brown 1

CAS NO.： 2475-33-4

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Specification： 98.0%

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Lead Time： 14-30 days

Max Capacity： -

Packing： 25KG/Fibre Drum

Product Detail

Properties

Vat Brown 1

CAS：2475-33-4

Molecular formula：C42H18N2O6

Molecular weight：646.6

Properties:Dark brown powder. Insoluble in water and xylene (cold), slightly soluble in tetrahydronaphthalene (hot) and xylene (hot). It is green and gray in concentrated sulfuric acid and produces Brown precipitation after dilution. It is yellow brown in the alkaline solution of insurance powder and dark olive in the acidic solution.

Application:VAT 1 is mainly used for dyeing cotton fiber with good levelness and affinity. It is also used for dyeing viscose fiber, silk, vinylon, viscose cotton and vinylon cotton. It can also be used to dye polyester cotton blended fabrics with disperse dyes in the same bath, and polyester is less stained.

Structure：

Properties

Reduced Brown BR is mainly used for dyeing cotton fiber with good levelness and affinity. It is also used for dyeing viscose fiber, silk, vinylon, viscose cotton and vinylon cotton. It can also be used to dye polyester cotton blended fabrics with disperse dyes in the same bath, and polyester is less stained. Reduced Brown br can also be dyed with reduced grey BG in coffee color, and with reduced grey BG, brown GG and khaki GG in various gray and brown colors. It is a commonly used brown variety.

CAS No.

2475-33-4

Formula

C42H18N2O6

Molecular Mass

646.60200

Exact Mass

646.11600

PSA

134.00000

Logp

7.28180

IUPAC

17,30-diazaundecacyclo[27.15.0.02,18.03,16.06,15.08,13.019,28.021,26.031,44.032,41.034,39]tetratetraconta-1,3(16),4,6(15),8,10,12,18,21,23,25,28,31(44),32(41),34,36,38,42-octadecaene-7,14,20,27,33,40-hexone

Matter Classification

organic

Category

Density

1.651 g/cm3

Boiling Point

675.58°C (rough estimate)

Appearance

Dark brown or black powder

HS Code

3204159000

UN No.

2810

DG-Class

0.0

Risk Code

R25

Safety Label

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