Carbon Black — PBk7 / CAS 1333-86-4

Description

1. Product Overview

Carbon Black (PBk7, CAS 1333-86-4) is a high-performance fine carbon material widely used as a reinforcing agent, pigment, and functional additive across multiple industrial sectors. It is primarily utilized in rubber manufacturing, plastics, inks, coatings, and conductive applications due to its exceptional strength-enhancing and pigmentation properties. The product delivers superior dispersion characteristics, high tint strength, and excellent UV resistance, making it a critical input for performance-driven formulations. Its strategic importance lies in its ability to significantly enhance durability, conductivity, and product lifecycle performance while maintaining cost efficiency at scale.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Amorphous elemental carbon (C)
• CAS Number: 1333-86-4
• Grade: PBk7 industrial standard
• Appearance: Fine black powder
• Particle Size: Typically 10–100 nm (varies by grade)
• Bulk Density: Approx. 80–600 kg/m³ (grade-dependent)
• Surface Area: High surface activity (BET variable by specification)
• Purity: ≥ 99% carbon content (industrial grade range)
• Packaging Options: 10 kg bags, 25 kg bags, 500 kg jumbo bags, bulk container loading
• Shelf Life: Indefinite under dry, sealed, and ventilated storage conditions

3. Core Industrial Applications

Carbon Black PBk7 is extensively used in tire and rubber reinforcement, significantly improving tensile strength, abrasion resistance, and overall product durability. In plastics and masterbatch production, it functions as a high-performance pigment and UV stabilizer, ensuring color consistency and long-term material integrity. It is also widely applied in inks, coatings, and paints for deep-black pigmentation and enhanced opacity. In advanced applications, it supports conductive formulations used in batteries, cables, and electronic components where controlled electrical conductivity is required. Its performance advantage lies in its ability to simultaneously enhance mechanical strength, thermal stability, and conductivity at low loading levels.

4. Competitive Advantages

• Quality Consistency: Tight particle size distribution ensures uniform performance in industrial formulations
• Supply Reliability: Scalable production capacity supporting continuous bulk procurement
• Logistics Capability: Global export-ready packaging optimized for containerized shipping efficiency
• Price Competitiveness: Cost-efficient reinforcement and pigmentation solution for high-volume industries
• Sustainability: Produced with optimized combustion and recovery processes reducing environmental footprint
• Technical Support: Full documentation including COA, MSDS, and application guidance available for industrial buyers

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 20 MT (bulk industrial supply)
• Loading Capacity: Approximately 20–25 MT per 20ft container (depending on packaging density and regional shipping standards)