VAT Brown
VAT Brown is a synthetic vat dye known for its rich, deep brown coloration and excellent durability on cellulose fibers such as cotton, rayon, and linen. It is widely used in textile applications requiring superior fastness properties including resistance to washing, light, and rubbing. The dyeing process involves a reduction-oxidation mechanism that allows the dye to penetrate fibers deeply, resulting in vibrant and long-lasting brown shades. VAT Brown is also employed in specialty applications requiring stable and durable brown pigmentation.
VAT Brown
Primary Uses
- Dyeing cellulose fibers such as cotton, rayon, and linen to produce deep brown colors
- Used in vat dye baths for uniform color uptake and excellent fastness to washing and light.
- Applied in textile printing for creating durable and vibrant brown patterns.
Secondary Uses
- Used in the production of inks and coatings requiring stable brown pigments.
- Employed in laboratory dyeing for fiber analysis and quality control research.
1. Basic Identification Attributes
- Botanical Source: Synthetic
- Common/Trade Name: VAT Brown
- INCI Name: VAT Brown
- CAS Number: 12227-73-1
- HS Code: 3204.12
- Synonyms: Vat Brown 1, C.I. Vat Brown 1
2. Physical & Chemical Properties
- Physical State: Powder or granular form
- Color & Odor: Deep brown; odorless
- Solubility: Insoluble in water; soluble in alkaline reducing agents
- Density: Approx. 1.3 g/cm³
- Shelf Life: 24 months under proper storage
3. Safety & Hazard Attributes
- GHS Classification: May cause skin and eye irritation
- Toxicity: Moderate toxicity if ingested; avoid inhalation of dust
- Allergen Information: Potential irritant for sensitive individuals
- Exposure Limits: Follow occupational safety guidelines
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated place away from oxidizers
- Container Type: Sealed polyethylene or equivalent non-reactive containers
- Shelf Life: 24 months when stored properly
- Handling Precautions: Use gloves, mask, and protective clothing to avoid dust exposure
5. Regulatory & Compliance Attributes
- Complies with industrial dye regulations
- Manufactured in GMP-compliant facilities
6. Environmental & Health Impact
- Biodegradability: Moderate; dispose according to local regulations
- Ecotoxicity: Potentially harmful to aquatic life at high concentrations
- Bioaccumulation: Not expected
Safety Handling Precautions
- PPE Required: Gloves, protective eyewear, dust mask
- Handling Guidelines: Avoid dust generation; avoid skin and eye contact
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if symptoms persist
- Skin Contact: Wash with soap and water
- Eye Contact: Rinse thoroughly with water; consult a doctor if irritation continues
- Ingestion: Do not induce vomiting; seek immediate medical attention
Firefighting Measures
- Fire Hazards: Combustible at high temperatures
- Extinguishing Media: Water spray, foam, dry chemical
- Special Precautions: Avoid inhaling combustion fumes
Hazardous Combustion Products: Carbon monoxide, nitrogen oxides
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