Subh Chem

Carbon Black Powder – Product Description

Overview:

Carbon black powder is a fine, black powder composed primarily of elemental carbon. It is produced by the incomplete combustion or thermal decomposition of hydrocarbons and is one of the most widely used industrial chemicals. It has a high surface-area-to-volume ratio and is primarily used as a reinforcing agent in rubber products, especially tires, and as a black pigment in inks, paints, and plastics.

Key Characteristics:

• Appearance: Fine black powder

• Chemical Composition: Predominantly elemental carbon (>95%)

• Particle Size: Typically ranges from 10 to 500 nanometers

• Surface Area: High surface area (measured in m²/g)

• Structure: Amorphous carbon with a chain-like aggregate structure

• Conductivity: Can be electrically conductive depending on the grade

Types of Carbon Black:

• Furnace Black: Most commonly used; produced in a furnace by burning hydrocarbons.

• Channel Black: Historically produced by channel processes, now mostly obsolete.

• Thermal Black: Produced by thermal decomposition of hydrocarbons without oxygen.

• Acetylene Black: High purity, used in specialty applications like batteries.

Applications:

• Rubber Industry: Reinforcement in tires, belts, and hoses.

• Plastics: Colorant and UV stabilizer.

• Coatings & Inks: Pigment for paints, printing inks, and coatings.

• Electronics: Conductive additives in batteries and capacitors.

• Construction: Asphalt modification and insulation materials.

Safety & Handling:

• Dust Hazard: Can form combustible dust clouds; handle with care.

• Health Concerns: Inhalation of fine particles should be avoided; use PPE and proper ventilation.

• Storage: Keep in a cool, dry place; avoid generating dust.