Vat Brown 1
- CAS NO.:2475-33-4
- Empirical Formula: C42H18N2O6
- Molecular Weight: 646.6
- MDL number: MFCD00071878
- EINECS: 219-599-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-03-19 15:37:50
What is Vat Brown 1?
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 |
Properties of Vat Brown 1
Boiling point: | 675.58°C (rough estimate) |
Density | 1.2856 (rough estimate) |
refractive index | 1.4670 (estimate) |
pka | 11.33±0.20(Predicted) |
CAS DataBase Reference | 2475-33-4(CAS DataBase Reference) |
EPA Substance Registry System | C.I. Vat Brown 1 (2475-33-4) |
Safety information for Vat Brown 1
Computed Descriptors for Vat Brown 1
Abamectin manufacturer
Hina DyeChem Industries
Vikram And Company
Karan Dyestuff Industries
Jaffs Dyechem Private Limited
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