Carbon Black Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1333-86-4 |
| Product name | Carbon Black |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 Carbon Black
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Carbon Black Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Carbon Black
| Industry | Application | Process |
|---|---|---|
| Rubber Industry | Reinforcing filler for rubber products such as tires, conveyor belts, and seals; enhances abrasion resistance, tensile strength, and aging resistance | Uniformly mixed with rubber and curing agents during compounding, followed by vulcanization and molding |
| Plastics Industry | Colorant, UV screening agent, and conductive additive for polyethylene, polypropylene, and other plastic products | Dispersed into the polymer matrix via melt compounding or masterbatch processing |
| Ink Industry | Black pigment for news inks, printing inks, and writing inks; provides color intensity and stability | Ground and dispersed with vehicles and solvents to produce uniform paste- or liquid-type inks |
| Coatings Industry | Colorant, UV stabilizer, and conductive agent for automotive primers and industrial protective coatings | Dispersed into resin-solvent systems using high-speed agitation and grinding |
| Battery Industry | Conductive additive for electrode materials in lithium-ion batteries; improves electrode conductivity | Mixed with active materials and binders to form electrode slurries, then coated onto current collectors |
| Other Industries | Colorant or functional filler for papermaking, electrostatic copying, electronic component encapsulation, and metallurgy | Incorporated into the base material via dry blending, wet dispersion, or other application-specific methods |
Manufacturing Quality Control of Carbon Black
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Particle Size (Particle Size Distribution) | Transmission Electron Microscopy (TEM) | Observes the morphology and particle size of carbon black using an electron microscope, with particle size distribution obtained through image analysis. |
| Nitrogen Adsorption Method (BET Surface Area Method) | Determines the specific surface area of carbon black, indirectly reflecting particle size; higher surface area indicates smaller particle size. | |
| Specific Surface Area | BET Nitrogen Adsorption Method | Calculates the total surface area per unit mass of material based on nitrogen adsorption at low temperatures. |
| Oil Absorption Value (DBP Absorption Value) | Di-n-butyl phthalate Absorption Method (DBP Method) | Measures the absorption capacity of carbon black for DBP, reflecting its structure level; higher absorption value indicates more developed structure. |
| pH Value | Water Suspension Potentiometric Method | Disperses carbon black in deionized water, stirs the mixture, allows it to settle, then measures the pH of the suspension using a pH meter. |
| Moisture Content | Drying Loss Method | Dries the sample at a specified temperature (e.g., 105–110°C) until constant weight is achieved, calculating moisture content based on mass loss. |
| Ash Content | High-Temperature Combustion Method (Muffle Furnace Method) | Completely burns carbon black at high temperature (approximately 800–950°C); the residual inorganic matter is ash, whose mass percentage is calculated by weighing. |
| Volatiles Content | Thermogravimetric Analysis (TGA) or Heating Loss Method | Heats the sample under inert atmosphere or air, measuring mass loss during heating; after subtracting moisture content, the remainder represents volatiles. |
| Poured Density (Bulk Density) | Pouring Method | Allows carbon black to naturally flow from a certain height into a standard cylinder, then weighs and calculates mass per unit volume. |
| Dispersion | Dispersion Tester or Microscopic Observation Method | Evaluates the uniformity of carbon black dispersion in a medium after ultrasonic treatment, using laser particle size analyzer or microscopy. |
| Surface Functional Groups | Fourier Transform Infrared Spectroscopy (FTIR) | Identifies the presence and types of oxygen-containing functional groups (such as carboxyl, hydroxyl, carbonyl, etc.) on the surface of carbon black. |
| Electrical Conductivity | Volume Resistivity Measurement Method | Presses carbon black into a pellet-shaped specimen and measures its resistance under specific pressure, calculating volume resistivity to assess electrical conductivity. |
Technical Specifications of Carbon Black
| Test Item | Specification |
|---|---|
| Appearance | Black granular or powdered solid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Odor | Characteristic faint carbonaceous odor |
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 Carbon Black
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Carbon Black
Industrial Carbon Black 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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