What are The Similarities and Differences Between Carbon Black and White Carbon Black?

Author : Clirik

 In fact, white carbon black and carbon black are two distinct substances with different properties and applications. The term 'white carbon black' is primarily used due to its similarity in reinforcing function to traditional carbon black. White carbon black mainly consists of silica, which is chemically known as silicon dioxide (SiO2). However, it undergoes physical and chemical modifications that differentiate it from ordinary silica. These modifications enhance its activity and make it more suitable for various industrial uses.


Carbon Black and White Carbon Black


carbon black powder 

Carbon Black

Carbon black is an amorphous form of carbon, characterized by its light, loose, and extremely fine black powder with a significantly large surface area ranging from 10-3000m2/g. It is produced through incomplete combustion or thermal decomposition of carbon-containing substances under conditions of insufficient air. The structure of carbon black can be described by the extent to which its particles coalesce into chains or clusters. When composed of condensates that vary in size, shape, and particle count within each condensate, it is referred to as high-structure carbon black. The commonly used oil absorption value serves as an indicator for structure; the higher the oil absorption value, the greater the structural integrity and ability of carbon black to form a network channel while being resistant to destruction.


white carbon black powder 

White Carbon Black

White carbon black is a collective term for white powdered amorphous silicic acid and silicate products, primarily including precipitated silica, fumed silica, ultra-fine silica gel, as well as powdered synthetic aluminum silicate and calcium silicate. It is characterized by its porous nature and can be represented by the composition SiO2·nH2O, where nH2O exists in the form of surface hydroxyl groups. It exhibits solubility in caustic soda and hydrofluoric acid while being insoluble in water, solvents, and acids (excluding hydrofluoric acid). Additionally, it possesses high temperature resistance properties along with non-flammability characteristics. Furthermore, it is tasteless and odorless while exhibiting excellent electrical insulation capabilities.


The distinction between carbon black and white carbon black

Carbon black is a highly efficient black toner with exceptional performance, commonly utilized in the production of paint pigments and various other products such as coatings, rubber, plastics, electronic and electrical insulation materials, thickeners, etc. There exists a wide range of carbon black types available to cater to diverse application requirements including high carbon black, medium carbon black, low carbon black, ultra-fine carbon black, nano carbon black. Additionally, white carbon black refers to ordinary carbon black coated with polycarbonate resin and polyzinc sulfate on its surface through hot processing. This coating enhances heat resistance and wear resistance while altering the appearance of the material for broader applications within the plastic industry such as melt molding, injection molding, gluing.


Both carbon black and white carbon black can be used to make paints, rubber, plastics, and other products. The main difference between them is that the molecules of white carbon black are coated with a layer of polycarbonate resin polyzinc sulfate, which makes its surface appear white. In contrast, ordinary carbon black has a black surface. Additionally, the heat resistance and wear resistance of white carbon black have been improved to some extent, making it suitable for a wider range of applications.

Different Properties

Carbon Black: The carbon black is a finely powdered substance characterized by its high specific surface area and porosity, appearing in a black coloration. Its specific surface area can range from 300 to 2000 square meters per gram, while the porosity can reach levels of 70-80%. These distinctive physical properties confer exceptional adsorption and dispersion capabilities upon carbon black. Composed primarily of carbon with trace impurities, it exhibits notable chemical attributes such as potent reducing and oxidizing abilities. Carbon black readily reacts with oxygen, chlorine, hydrogen, among other elements or compounds to form corresponding substances. Additionally, it possesses certain hydrophilic and lipophilic characteristics that enable compatibility with both water and oil.


White Carbon Black: The material possesses a low weight, with a relative density ranging from 2.32 to 2.65 and a melting point of 1750℃. It exhibits solubility in caustic soda and hydrofluoric acid, while remaining insoluble in other acids, water, and various solvents. Additionally, it demonstrates excellent resistance to high temperatures, is non-combustible, does not absorb water, and showcases favorable electrical insulation properties. Moreover, it displays chemical inertness towards the substrate as well as active components and additives. Furthermore, it exhibits good compatibility with vitamins, hormones, fluoride compounds antibiotics enzymes ,and numerous active ingredients commonly employed in cosmetics due to its porosity and large specific surface area . When combined with raw adhesive materials,it exerts strong dispersion force . In rubber products where it serves as a filler,it effectively enhances reinforcement.


Different Form

Carbon Black: The term "carbon black" typically refers to carbon particles that are formed as a result of incomplete combustion of organic matter, during which hydrogen and oxygen elements are converted into water while the carbon element remains unburned and separates from the molecule.


White Carbon Black: The precipitation method employing non-metallic ore as the silicon source is utilized for the preparation of white carbon black. The crucial aspect lies in the conversion of crystalline silica and silicates into amorphous silica. Wollastonite, opal, Eloite, olivine, ophiolite, kaolin, hard kaolin, coal gangue, fly ash, etc., are among the primary raw materials employed.


Different Main Used

Carbon Black: Carbon black is a highly significant industrial raw material with a diverse range of applications. It serves as a black dye in the production of Chinese ink, ink, paint, and other products, while also finding extensive usage in the rubber industry. In the manufacturing process of Chinese inks, inks, and paints, carbon black imparts these products with an intense and opulent black hue owing to its exceptional stability and superior opacity. Moreover, carbon black plays a pivotal role in enhancing strength, durability, and anti-aging properties when incorporated as reinforcing agents into rubber materials like automobile tires, conveyor belts, and various seals within the rubber industry. As a versatile raw material that enhances both aesthetics and functionality while prolonging product lifespan through improved material characteristics, carbon black assumes paramount importance within dyestuff coatings and rubber industries alike. With continuous advancements in scientific technology alongside ongoing process improvements underway,it is anticipated that even greater breakthroughs will be achieved for future applications of carbon black across multiple domains.


White Carbon Black: White carbon black, also known as silica, is a versatile material that finds applications in various industries. In addition to its use as a substitute for carbon black in colored rubber products for reinforcement purposes, it possesses numerous other applications. Within the agricultural chemicals sector, white carbon black plays a pivotal role by serving as a carrier or diluent in pesticide and high-efficiency fertilizer spraying. Its disintegration capability makes it an ideal component for these applications, ensuring effective dispersion and absorption of the active ingredients. Moreover, white carbon black is utilized in toothpaste production where it functions both as a filler and an abrasive agent in transparent color and opaque toothpaste formulations. This type of toothpaste offers multiple advantages such as exceptional flexibility, smooth paste texture, easy adherence to teeth surfaces, and superior dispersion properties.


The utilization of white carbon black extends beyond merely replacing traditional reinforcing agents in rubber products; its versatility allows it to significantly contribute to various industries such as agriculture and oral care by enhancing product effectiveness and improving consumer experience through its diverse range of applications.


Grinding Mill Recommended

There is a wide range of carbon black ultrafine mill models available, and Clirik recommends the HGM series ultrafine mill equipment for users to order according to their specific production requirements. Our company's ultrafine carbon black grinding machine comprises a hammer crusher, bucket elevator, storage bin, vibration feeder, micro-grinding machine, frequency conversion classifier, double cyclone collector, pulse dust removal system, high-pressure fan, air compressor, and electrical control system. The entire set of equipment is user-friendly with a robust structure suitable for modern stone powder production enterprises.


ultrafine grinding mill 

HGM Ultrafine Grinding Mill

Capacity: 0.2-45 t/h

Feed Size: ≤20 mm

Powder Fineness: 325-3000 mesh


Mill Advantages


1. High efficiency: The ultrafine pulverizer adopts advanced grinding technology and equipment, enabling it to quickly and efficiently grind minerals into ultrafine powder. It has a high production capacity and processing capability, meeting the requirements of mass production.


2. High quality: This ultrafine pulverizer can grind minerals into ultra-fine powder with controllable fineness, ensuring high powder uniformity and consistency.


3. Energy saving and environmental protection: The ultrafine pulverizer incorporates advanced energy-saving technology in the grinding process, reducing energy consumption and carbon emissions. Additionally, the equipment is equipped with a dust control system that effectively reduces dust pollution, meeting environmental protection requirements.


4. Flexibility: The ultrafine pulverizer equipment can be adjusted and optimized according to different production requirements and product specifications. It offers adjustable grinding parameters for controlling the fineness and distribution of the powder, catering to specific customer needs.

Recommended products
Copyright © Shanghai Clirik Machinery CO., LTD. All rights reserved