Industrial grade activated carbon is a black powder, granular or pellet amorphous with porous carbon. The main component is carbon, also contains a small amount of oxygen, hydrogen, sulfur, nitrogen, chlorine. Industrial grade activated carbon also has a fine structure such as graphite, except that the grains are small and the layers are stacked irregularly. Has a large surface area (500 ~ 1000 m2/g), has a strong adsorption performance, can adsorb gas, liquid or colloidal solids on its surface; for gases, liquids, the quality of adsorbed substances can be similar to that of activated carbon the quality of itself. The adsorption of industrial grade activated carbon is selective, non-polar substances are more easily adsorbed than polar substances. In the same series of substances, substances with higher boiling points are more likely to be adsorbed. The higher the pressure is, the lower the temperature is, the greater the concentration is and the greater the amount of adsorption is. On the contrary, decompression and warming are conducive to the desorption of gases.
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