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HS Code |
310295 |
| Name | Direct Brown 349 |
| C I Number | Direct Brown 349 |
| Cas Number | 12222-32-7 |
| Molecular Formula | C34H24N8Na4O14S4 |
| Molecular Weight | 1005.90 g/mol |
| Solubility | Soluble in water |
| Appearance | Brown powder |
| Application | Textile dyeing (mainly cotton) |
| Light Fastness | Moderate |
| Melting Point | Decomposes |
| Type | Direct dye |
| Chemical Class | Azo dye |
| Ph Stability | Stable in neutral to mildly alkaline pH |
| Storage | Keep in a cool, dry, and well-ventilated place |
| Ec Number | 602-158-7 |
As an accredited Direct Brown 349 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Brown 349 is packaged in 25 kg woven polypropylene bags lined with polyethylene for moisture protection, labeled with product and hazard details. |
| Shipping | Direct Brown 349 is typically shipped in sealed, moisture-proof bags or fiber drums lined with polyethylene to prevent contamination and moisture absorption. Packaging is labeled according to safety regulations. It should be transported in a cool, dry environment, away from incompatible substances, and handled with standard chemical safety precautions. |
| Storage | Direct Brown 349 should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizers. Keep it away from moisture and sources of ignition. Ensure containers are properly labeled. Protective measures should be taken to prevent dust generation and accumulation, and spills should be promptly cleaned up using appropriate procedures. |
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Purity 98%: Direct Brown 349 with purity 98% is used in cotton textile dyeing, where it ensures deep color saturation and uniformity. Molecular weight 650 g/mol: Direct Brown 349 with a molecular weight of 650 g/mol is used in paper coloring applications, where it provides consistent hue and controlled migration. Lightfastness grade 4: Direct Brown 349 with lightfastness grade 4 is used in viscose fiber dyeing, where it delivers enhanced resistance to fading under sunlight. Solubility in water 60 g/L: Direct Brown 349 with solubility in water at 60 g/L is used in continuous dye baths, where it enables easy dispersion and stable dye solutions. Stability temperature 120°C: Direct Brown 349 with a stability temperature of 120°C is used in high-temperature dyeing processes, where it maintains fastness properties without degradation. pH stability range 5–8: Direct Brown 349 with pH stability range 5–8 is used in reactive dye formulations, where it offers reliable shade consistency across varying pH conditions. Particle size <10 µm: Direct Brown 349 with particle size less than 10 µm is used in ink preparation, where it achieves smooth dispersion and prevents clogging of printing equipment. Melting point 220°C: Direct Brown 349 with a melting point of 220°C is used in thermoplastic polymer coloring, where it enables high-temperature extrusion without decomposition. |
Competitive Direct Brown 349 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
Flexible payment, competitive price, premium service - Inquire now!
