Charcoal, 3 mm, contains approx. 13 % calcium bentonite, 250 g, plasticCharcoal, 3 mm, contains approx. 13 % calcium bentonite, Molar mass (M) 12,01 g mol Activated charcoals are used in many areas within the chemical and pharmaceutical industry. The charcoal is available in powder or broken coal format and as extruded charcoal, depending on the application. Activated carbon and its application Qualities of activated carbon Art. No. Air purification Gas purification Water purification Chemical industry Pharmaceutical