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Vat Black 8

CAS NO.： 2278-50-4

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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 Black 8

CAS：2278-50-4

Molecular formula：C45H19N3O4

Molecular weight：665.66

Appearance：Black powder. Insoluble in water, acetone, ethanol, chloroform and toluene, slightly soluble in o-chlorophenol and pyridine. It is yellow green in concentrated sulfuric acid and produces black precipitation after dilution. It is blue-green in the alkaline solution of insurance powder and red brown in the acidic solution.

Synopsis: VAT Black 8 is mainly used for dyeing and printing of cotton fibers and their textiles. It can also be used for dyeing viscose fiber, silk and Uygur cotton blended fabrics. The dyeing method can be roll and dip dyeing. Its fine powder commercial dyes are suitable for suspension pad dyeing. The dyed fabric of this product is finished with cyanaldehyde and bhes resin, and the color light is basically unchanged; After finishing with trimethyl trimethylol melamine or DMEU resin, the color light is blue compared with the original; After finishing with 2D resin, the color light turns slightly red.

Structural formula：

Properties

Reduced ash m is mainly used for the staining of cotton fibers and the printing of cotton cloth with good affinity and generally homogeneous stainability. It is also used to dye silks, adhesive fibers, and kapok.

CAS No.

2278-50-4

Formula

C45H19N3O4

Molecular Mass

665.65000

Exact Mass

665.13800

PSA

101.37000

Logp

8.85040

IUPAC

6,42,48-triazatridecacyclo[25.18.2.139,42.02,22.05,21.07,20.08,17.010,15.024,46.028,41.031,40.033,38.043,47]octatetraconta-1(45),2(22),3,5(21),7(20),8(17),10,12,14,18,24(46),25,27(47),28(41),29,31(40),33,35,37,39(48),43-henicosaene-9,16,23,32-tetrone

Matter Classification

organic

Category

Density

1.2394 (rough estimate)

Boiling Point

685.55°C (rough estimate)

Appearance

Black powder. Insoluble in water, acetone, ethanol, chloroform, toluene, slightly soluble in o-chlorophenol, pyridine. Yellow greenish color in concentrated sulfuric acid, resulting in a black precipitate upon dilution. It was blue and green in alkali solution of insurance powder and red and brown in acid solution.

HS Code

32041590

UN No.

0.0

DG-Class

0.0

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