Vat Brown 1
- Product Name
- Vat Brown 1
- CAS No.
- 2475-33-4
- Chemical Name
- Vat Brown 1
- Synonyms
- Brown SK;Brown BR;C.I. 70800;VAT BROWN 1;Vat Brown 44;C.I.VATBROWN1;Mayvat Brown BR;Cibanone Brown BR;Anthramar Brown BR;Mikethrene Brown BR
- CBNumber
- CB9512232
- Molecular Formula
- C42H18N2O6
- Formula Weight
- 646.6
- MOL File
- 2475-33-4.mol
Vat Brown 1 Property
- Boiling point:
- 675.58°C (rough estimate)
- Density
- 1.2856 (rough estimate)
- refractive index
- 1.4670 (estimate)
- pka
- 11.33±0.20(Predicted)
- LogP
- 8.52
- CAS DataBase Reference
- 2475-33-4(CAS DataBase Reference)
- EPA Substance Registry System
- C.I. Vat Brown 1 (2475-33-4)
N-Bromosuccinimide Price
- Product number
- DYE0000813
- Product name
- VAT BROWN 1
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $500.63
- Updated
- 2021/12/16
Vat Brown 1 Chemical Properties,Usage,Production
Preparation
1,4-Diaminoanthraquinone and 1-Bromoanthracene-9,10-dione or 1-Bromoanthracene-9,10-dione (2 Moore) condensation, its product in Pyridine with Aluminium chloride heating.
General Description
Fine, dark brown to black crystalline powder with a slight odor.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Oxidizing agents and reducing agents may destroy Vat Brown 1's color. .
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition Vat Brown 1 may emit toxic fumes of carbon oxides and nitrogen oxides.
Fire Hazard
Flash point data for Vat Brown 1 are not available; however, Vat Brown 1 is probably combustible. Dust clouds may form explosive mixtures with air.
Synthesis
1,1' : 4,1''-Trianthrimide-2,2' : 3,2''- carbazole, (Indanthren Brown BR, is prepared from 1,1' : 4,1''- trianthrimide in AlCl3 – pyridine .
Properties and Applications
red light brown. Dark brown powder. Slightly soluble in hot 1, 2, 3, 4 – Tetrahydronaphthalene and thermal Xylene, insoluble in cold Xylene. In concentrated sulfuric acid to Copenhagen green, dilution after brown precipitation. Alkaline reduction leuco for yellow brown; Acid reduction leuco for dark olive. Mainly used for cotton, hemp, silk and viscose dyeing and printing, cotton yarn dyeing common varieties. Used for polyester/cotton blended fabric two bath dyeing of polyester with little color. The leuco used for dyeing cotton knitwear.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 5 | 4-5 | 7 | 4-5 | 4-5 | 5 | 5 |
| AATCC | 5 | 5 | 8 | 4-5 | 4-5 | ||
Vat Brown 1 Preparation Products And Raw materials
Raw materials
Preparation Products
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