CAS 1333-86-4
Carbon Black
Carbon Black is the main reinforcing filler for rubber — tyres, belts, hoses and moulded goods — supplied in grades such as N330, N550 and N660.
Carbon black is nearly pure carbon produced by partially burning heavy oil feedstock. Its tiny particles bond to rubber and multiply its tensile strength, tear resistance and abrasion resistance — rubber without carbon black would wear out in a fraction of the time. It also colours rubber black and protects it from UV.
Grades are classified by ASTM D1765. The 'N' series number indicates particle size: lower numbers are finer and more reinforcing. N330 (HAF) is used in tyre treads and mechanical goods; N550 (FEF) gives smooth extrusion for hoses, profiles and inner liners; N660 (GPF) is a general-purpose grade for carcasses, sidewalls and moulded parts.
- CAS number
- 1333-86-4
- Grades / forms
- N330, N550, N660
- Industries
- Plastic & Rubber
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Request a quotation- Certificate of Analysis with every batch
- MSDS in destination format
- Toll manufacturing to your specification
- Private label packing available
Typical applications
- Tyre treads, sidewalls and inner liners
- Conveyor belts and transmission belts
- Hoses and extruded profiles
- Moulded rubber goods and seals
- EPDM automotive parts
Packing options
- 25 kg multi-wall paper bags
- 500–1,000 kg jumbo bags
Storage & handling
Store dry. Carbon black is very dusty and difficult to clean; handle with extraction and keep bags intact.
Documentation
Certificate of Analysis, MSDS, Certificate of Origin, dangerous goods declaration where applicable, and third-party pre-shipment inspection on request.
Typical specification
- Grades
- N330, N550, N660
- Iodine adsorption (g/kg)
- N330 ≈ 82; N550 ≈ 43; N660 ≈ 36
- Oil absorption (OAN, cm³/100 g)
- N330 ≈ 102; N550 ≈ 121; N660 ≈ 90
- Heating loss
- ≤ 1.5%
- Form
- Pelletised
Typical values for reference. The exact specification is agreed before the order and confirmed on the Certificate of Analysis for each batch.
Carbon Black — frequently asked
N330 is used where high reinforcement and abrasion resistance are needed, such as tyre treads and mechanical goods. N550 gives smooth extrusion for hoses and profiles. N660 is a general-purpose grade for sidewalls, carcasses and moulded parts.
Under ASTM D1765, the first digit after 'N' indicates the average particle size range. Lower numbers mean smaller particles and higher reinforcement. The other digits identify the specific grade.
Rubber-grade carbon black is supplied pelletised, which flows better, produces much less dust and handles well in bulk systems.
Yes. Chemtrade manufactures and exports Carbon Black (CAS 1333-86-4) from Surat, Gujarat, India to more than 55 countries, for customers in Plastic & Rubber. Send your grade, quantity and destination port for a quotation within one business day.
Every shipment of Carbon Black from Chemtrade includes a batch-specific Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS). Certificate of Origin, third-party pre-shipment inspection and destination-specific regulatory documentation are arranged on request.
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