Vat Black 8

Vat Black 8 Basic information

Product Name:	Vat Black 8
Synonyms:	1H-benz[6,7]indazole[2,3,4-fgh]naphth[2'',3'':6',7']indolo[3',2':5,6]anthra[2,1,9-mna]acridine-2,7,10,15-tetrone;Dycosthren Grey M;Grey M;Hibeithrene Grey M;Indanthren Grey M;Mikethrene Grey M;Nihonthrene Grey M;Novatic Grey M
CAS:	2278-50-4
MF:	C45H19N3O4
MW:	665.66
EINECS:	218-906-1
Product Categories:	Organics
Mol File:	2278-50-4.mol

Vat Black 8 Chemical Properties

Boiling point	685.55°C (rough estimate)
density	1.2394 (rough estimate)
refractive index	1.7790 (estimate)
pka	13.18±0.20(Predicted)
EPA Substance Registry System	1H-Benz[6,7]indazolo[2,3,4-fgh]naphth[2'',3'':6',7']indolo[3',2':5,6]anthra[2,1,9-mna]acridine-2,7,10,15-tetrone (2278-50-4)

Safety Information

MSDS Information

Vat Black 8 Usage And Synthesis

Preparation

3,9-Dibromo-7H-benzo[de]anthracen-7-one, 3H-naphtho[2,3-f]indazol-3-one and 1-Aminoanthracene-9,10-dione in Potassium hydroxide under the existence of condensation, closed loop.

Safety Profile

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

Properties and Applications

blue light grey. Black powder. Insoluble in water, Acetone, Etanol, Toluene and Chloroform, slightly soluble in 2 – Chlorophenol, Pyridine . In concentrated sulfuric acid to have yellow green: alkaline reduction leuco for blue light green; Acid reduction leuco for red brown: mainly used in the cotton fabric jig dyeing, dyeing and suspended pad dyeing, also used for Fiber/cotton, polyester-cotton blended fabric two bath set of dye dyeing. Suitable for suspension pad dyeing deep, shallow gray, and can spell dye all kinds of noise. Its main leuco dye yarn, can also be used to viscose and silk dyeing.

Standard	Ironing Fastness	Chlorine bleach	Light Fastness	Mercerized	Oxygen bleach	Soaping
						Fading	Stain
ISO	4	4-5	7	4	5	4	5

Vat Black 8 Preparation Products And Raw materials

Raw materials

Sodium hydroxide-->Government regulation-->Sodium sulfite-->Sodium bisulfite-->Chlorosulfonic acid-->Copper(I) chloride-->Sodium hypochlorite-->1-Aminoanthraquinone-->Benzanthrone-->Diffusing agent-->INDUSTRIAL SALT-->Butylnaphtalenesulfonic Acid Sodium Salt-->1,4-Dibromobenzene-->1,9-Pyrazoloanthrone-->1,9-Pyrazoloanthrone-->3,9-Dibromobenzanthrone-->1-Aminoanthraquinone

Indole-4-carboxaldehyde 7-METHYL (1H)INDAZOLE 4-Benzoylbiphenyl 5-PHENYL-1H-INDOLE 4-METHYL (1H)INDAZOLE 1H-INDAZOLE-4-CARBALDEHYDE 6,7-DIMETHYLINDOLE 2-METHYLCARBAZOLE 2-ACETYLCARBAZOLE 98 anthra[2,1,9-mna]benz[6,7]indazolo[2,3,4-fgh]acridine-5,10-dione 1-NAPHTHALEN-1-YL-1H-INDAZOLE 1,9-Pyrazoloanthrone Benzanthrone 3-PHENYL-1H-INDAZOLE Vat Black 8 6-Ethylindole 7-BENZOYLINDOLE 1-P-TOLYL-NAPHTHALENE

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Vat Black 8

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