KohlenstoffSchwarz

Kohlenstoffschwarz, also known as carbon black, is a form of paracrystalline carbon. It is produced by the incomplete combustion or thermal decomposition of organic materials. The primary feedstock for carbon black production is typically heavy petroleum distillates or coal tar. The process involves burning these feedstocks under controlled conditions, resulting in fine particles of carbon.

Carbon black is characterized by its extremely small particle size, high surface area, and excellent UV absorption properties. Its color is intensely black, making it a widely used pigment. The properties of carbon black can be significantly altered by controlling the manufacturing process, leading to different grades with varying particle sizes, structure, and surface chemistry.

The most significant application of carbon black is as a reinforcing filler in rubber products, particularly tires. It dramatically improves the strength, durability, and abrasion resistance of rubber. In the tire industry, it accounts for the vast majority of carbon black consumption. Beyond rubber, carbon black is used as a black pigment in inks, paints, plastics, and coatings. It also finds applications as a conductive additive in certain electrical components and antistatic materials. Its high surface area and adsorptive properties make it useful in some filtration and purification processes. The production and use of carbon black are subject to environmental regulations due to potential air pollution during manufacturing and concerns about particulate matter.