Now this is chemistry: gases, tubes and disappearing stuff! Adsorption is the process when gases, vapor, substances from a solution of gas mixture are adsorped by the surface layer of a liquid or solid body - the adsorbent. Active charcoal is a good absorbent, and depending on the technology of manufacture, the surface of one gram of charcoal which can adsorb substances can reach 1500 m^2. Active charcoal is used widely in medicine and technology for the purification, separation and extraction o