Granular acetylene carbon black 25% 50% 75% CAS 1333-86-4 in bulk

Chemical Composition: Carbon black is composed primarily of carbon, typically more than 95% by weight. It may contain small amounts of hydrogen, oxygen, sulfur, and other elements depending on the production process and feedstock used.

Physical Properties:

• Particle Size: Carbon black particles are extremely small, with diameters typically ranging from 10 to 500 nanometers.
• Surface Area: Carbon black has a very high surface area per unit mass due to its fine particle size and complex structure, making it highly adsorbent.
• Color: Carbon black is black in color, giving it its name. It absorbs visible light across a wide range of wavelengths, resulting in its characteristic black appearance.

Production Methods:

• Furnace Process: The most common method for producing carbon black is the furnace process, where hydrocarbon feedstocks (such as natural gas or petroleum-based oils) are pyrolyzed in a controlled environment at high temperatures. The resulting carbonaceous soot is then collected and processed into carbon black.
• Channel Process: In the channel process, carbon black is produced by burning liquid hydrocarbons in a channel-shaped flame. The carbon particles formed are then collected and processed into carbon black.

Types of Carbon Black:

• Channel Black: Produced by the channel process, channel black has relatively low surface area and is often used in rubber reinforcement applications.
• Furnace Black: Furnace black, produced by the furnace process, has higher surface area and is commonly used in rubber, plastics, inks, coatings, and other applications.

Industrial Applications:

• Rubber Industry: Carbon black is one of the most important additives in the rubber industry, where it is used as a reinforcing filler to improve the strength, durability, and abrasion resistance of rubber products such as tires, conveyor belts, hoses, and seals.
• Plastics Industry: In the plastics industry, carbon black is added to polymers to enhance their mechanical properties, electrical conductivity, and UV resistance. It is used in a wide range of plastic products, including automotive parts, pipes, films, and packaging materials.
• Inks and Coatings: Carbon black is widely used as a pigment and black coloring agent in inks, coatings, paints, and toners. It provides deep black coloration, opacity, and UV stability to these products.
• Electronics and Conductive Materials: Carbon black is used in the production of conductive materials such as carbon electrodes, batteries, and conductive polymers. It imparts electrical conductivity and enhances the performance of these materials.
• Construction Materials: Carbon black is used as a pigment and strengthening additive in construction materials such as concrete, asphalt, and sealants.
• Chemical Industry: It finds applications as a catalyst support, adsorbent, and filler in various chemical processes and products.

Health and Safety Considerations:

• While carbon black itself is generally considered inert and non-toxic, inhalation of fine carbon black particles may pose respiratory health risks, particularly in occupational settings with high exposure levels.
• Occupational exposure to carbon black dust should be minimized through the implementation of engineering controls, proper ventilation, and personal protective equipment (PPE) in workplaces where carbon black is handled or processed.