Vat Black 8
![Vat Black 8 Structure](CAS/GIF/2278-50-4.gif)
- CAS No.
- 2278-50-4
- Chemical Name:
- Vat Black 8
- Synonyms
- Grey M;C.I.71000;Vat Grey S;Vat Black 8;Reduced ash M;Novatic Grey M;Paradone Grey M;Dycosthren Grey M;Mikethrene Grey M;Indanthren Grey M
- CBNumber:
- CB7875128
- Molecular Formula:
- C45H19N3O4
- Molecular Weight:
- 665.66
- MOL File:
- 2278-50-4.mol
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) |
Vat Black 8 Chemical Properties,Uses,Production
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
1of4
chevron_rightPreparation Products
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
Vikram And Company | +91-2226285989 +91-9821517722 | Maharashtra, India | 197 | 58 | Inquiry |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49392 | 58 | Inquiry |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | China | 34571 | 58 | Inquiry |
Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | China | 24200 | 58 | Inquiry |
AFINE CHEMICALS LIMITED | +86-0571-85134551 | China | 15395 | 58 | Inquiry |
CD Chemical Group Limited | +8615986615575 | China | 20356 | 58 | Inquiry |
Tianjin Dongpeng Industry And Trade Co., Ltd | 022-58089621,22,23,24,25,26,27,28 | China | 595 | 47 | Inquiry |
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 17691182729 18161915376 | China | 10011 | 58 | Inquiry |
Xuzhou Dayang Chemical Co., Ltd | 0516-82188011 82188010 | China | 168 | 34 | Inquiry |
Alfa Chemistry | 1-516-6625404 | United States | 9171 | 60 | Inquiry |