REACTIVE BLACK 5 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 12225-25-1 |
| Product name | REACTIVE BLACK 5 |
| 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 REACTIVE BLACK 5
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk REACTIVE BLACK 5 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of REACTIVE BLACK 5
| Industry | Application | Process |
|---|---|---|
| Textile Industry | Dyeing and printing of cellulosic fibers such as cotton, linen, and viscose | Exhaust dyeing, pad dyeing, and printing (typically forms covalent bonds with fibers under alkaline conditions) |
| Paper Industry | Coloration of paper | Direct addition to pulp or use in surface sizing for coloration |
| Leather Industry | Leather dyeing | Exhaust dyeing process, applied to achieve deep black shades |
| Ink Manufacturing | Colorant for aqueous inks | Formulated into water-soluble dye-based inks for writing or inkjet printing (in selected applications) |
Manufacturing Quality Control of REACTIVE BLACK 5
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Content (Assay) | UV-Vis Spectrophotometry | Quantifies dye concentration based on absorbance at characteristic wavelength (e.g., 598 nm) using Beer-Lambert law with reference standard. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration with iodine-based reagent reacting stoichiometrically with water. |
| Inorganic Salt (Na2SO4) | Gravimetric Analysis | Precipitates sulfate as BaSO4 under controlled conditions; mass of dried precipitate used to calculate salt content. |
| Heavy Metals (Pb, Cd, Cr, As, Hg) | ICP-OES | Simultaneously quantifies trace metals after acid digestion by measuring element-specific atomic emission intensities in plasma. |
| Chloride Ion | Potentiometric Titration with AgNO3 | Measures chloride concentration via argentometric titration using silver nitrate and a silver indicator electrode. |
| pH of 1% Aqueous Solution | pH Meter Measurement | Determines acidity/basicity of standardized aqueous dispersion using calibrated glass electrode pH meter. |
| Water Solubility | Filtration and Residue Weighing | Assesses solubility by dissolving sample in water, filtering undissolved residue, and weighing dried insoluble fraction. |
| Substantivity (Relative Affinity to Cotton) | Dyeing Test + Reflectance Measurement | Evaluates dye uptake on cotton fabric via standardized dyeing; calculates relative substantivity from K/S values measured by reflectance spectrophotometer. |
| Color Strength (Relative) | UV-Vis Spectrophotometry | Compares absorbance of test solution to certified reference standard under identical conditions to determine relative color strength. |
| Impurity Profile (Organic) | HPLC-UV | Separates and quantifies structurally related impurities (e.g., intermediates, isomers) using reversed-phase chromatography and UV detection. |
| Ash Content | Gravimetric Analysis (Ignition Method) | Determines non-volatile inorganic residue after high-temperature incineration (550-600 C) and precise weighing of residual ash. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of dry or dispersed particles by analyzing angular variation in laser light scattering intensity. |
Technical Specifications of REACTIVE BLACK 5
| Test Item | Specification |
|---|---|
| Appearance | Black granular solid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Heavy Metals | <=20 ppm |
| Solubility | Freely soluble in water |
| Color (APHA/Pt-Co) | Not applicable |
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 REACTIVE BLACK 5
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of REACTIVE BLACK 5
Industrial REACTIVE BLACK 5 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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