Direct Brown 95 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 16071-86-6 |
| Product name | Direct Brown 95 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Direct Brown 95
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Direct Brown 95 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Direct Brown 95
| Industry | Application | Process |
|---|---|---|
| Textile Dyeing and Printing | Dyeing and printing of cotton, linen, and viscose fibers | Immersion dyeing, jigger dyeing, pad dyeing, and printing (requires fixing agents) |
| Leather Industry | Leather dyeing | Immersion dyeing, typically used in combination with acid dyes for color blending |
| Paper Manufacturing | Coloration of specialty papers | Coloration via size-press application or surface coating |
| Ink Manufacturing | Colorant in aqueous inks | Mixing and grinding dispersion with water-soluble resins and additives |
Manufacturing Quality Control of Direct Brown 95
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Dye Content) | UV-Vis Spectrophotometry | Measures absorbance at characteristic wavelength to quantify dye concentration using Beer-Lambert law. |
| Moisture Content | Karl Fischer Titration | Determines water content via stoichiometric reaction between water and Karl Fischer reagent. |
| Inorganic Salt Content | Gravimetric Analysis | Precipitates and weighs inorganic sulfate or chloride salts after ashing and extraction. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Quantifies trace metals by measuring element-specific emission intensities from plasma-excited atoms. |
| pH of 1% Aqueous Solution | Potentiometric Titration | Measures hydrogen ion activity using calibrated pH electrode in standardized aqueous dispersion. |
| Water Solubility | Visual Inspection & Filtration | Evaluates complete dissolution in specified volume of water at defined temperature; residue assessed visually and gravimetrically. |
| Ash Content | Gravimetric Analysis (Ignition Loss) | Determines non-volatile residue after high-temperature incineration of sample. |
| Chloride Ion Content | Argentometric Titration (Mohr Method) | Titration with silver nitrate using potassium chromate indicator to detect endpoint via red Ag2CrO4 precipitate. |
| Sulfate Ion Content | Gravimetric Analysis (Barium Sulfate Precipitation) | Precipitates sulfate as BaSO4 and determines mass after filtration and drying. |
| Substantivity (on Cotton) | Reflectance Spectrophotometry | Measures color strength (K/S value) on dyed cotton fabric relative to standard reference. |
| Particle Size Distribution | Laser Diffraction | Analyzes scattered laser light intensity patterns to calculate particle size distribution in aqueous suspension. |
| Organic Impurities (Related Substances) | HPLC-UV | Separates and quantifies structurally related impurities using reversed-phase chromatography and UV detection. |
Technical Specifications of Direct Brown 95
| Test Item | Specification |
|---|---|
| Appearance | Brown crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in water and ethanol |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Direct Brown 95
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Direct Brown 95
Industrial Direct Brown 95 Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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