Vat Black 8

Black powder. Insoluble in water, acetone, ethanol, chloroform, toluene, slightly soluble in o-chlorophenol, pyridine. Yellowish green in concentrated sulfuric acid, produces black precipitate after dilution. Bluish green in alkaline solution of insurance powder, reddish brown in acidic solution.

Mildly toxic by intraperitoneal and ingestion routes. An eye irritant.When heated to decomposition it emits toxic fumes of NOx.

Using benzoxanthone and 1-aminoanthraquinone as raw materials, first bromide benzoxanthone to obtain dibromoanthrone (I), then diazotize 1-aminoanthrone, reduce and close the ring to obtain pyrazolanthone (II); Then (I) and (II) are condensed for the first time, and then condensed with 1-aminoanthraquinone for the second time, and the product is obtained by ring closure under basic conditions. After neutralization, filtration, mixing with additives, and drying, the finished product is obtained.

Mainly used for dyeing and printing cotton fiber and its textiles. It can also be used for the dyeing of viscose fiber, silk, and cotton blended fabrics. The dyeing method can be roll and dip dyeing. Its fine powder commercial dyes are suitable for suspension pad dyeing. The color of the printed and dyed fabrics of this product is basically unchanged after finishing with cyanaldehyde and BHES resin; after finishing with trimethyltrimethylolmelamine or DMEU resin, the color light is blue compared to the original one; after finishing with 2D resin, the color light turns slightly red .

Molecular Weight:665.6
XLogP3:8.9
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:5
Exact Mass:665.13755610
Monoisotopic Mass:665.13755610
Topological Polar Surface Area:101
Heavy Atom Count:52
Complexity:1610
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes