Vat Brown 25
- CAS NO.：6247-46-7
- Empirical Formula: C43H25N3O7
- Molecular Weight: 695.67
- EINECS: 228-367-4
- SAFETY DATA SHEET (SDS)
What is Vat Brown 25?
Preparation
N-(4-amino-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide and N-(5-chloro-4-methoxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide?condensation, cyclization and then.
Properties and Applications
red light brown. Purple red powder. Insoluble in water. In concentrated sulfuric acid for purple solution, after dilution to red. Alkaline reduction leuco for red brown; Acid reduction leuco for brown. Used for cotton suspension pad dyeing, good levelness. Generally used in jig dyeing color matching, but also can be used for polyester/cotton, Fiber/cotton blended fabric, silk and viscose dyeing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 5 | 5 | 7 | 5 | 5 | 5 | 5 |
| AATCC | 5 | 5 | 7-8 | 5 | 5 | ||
Properties of Vat Brown 25
| Boiling point: | 700.85°C (rough estimate) |
| Density | 1.2637 (rough estimate) |
| refractive index | 1.7790 (estimate) |
| pka | 11.22±0.20(Predicted) |
Safety information for Vat Brown 25
Computed Descriptors for Vat Brown 25
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