Activated charcoal is widely used in adsorption of gases due to its large surface area even though the amount of substance may be small in terms of quantity. read more
Activated charcoal is a very good adsorbent. It can easily adsorb large volumes of gases easily. Hence it is used in gas masks to adsorb harmfull gases. It cannot adsorb oxygen which makes it perfect for gas masks. read more
In World War I, activated charcoal was used in gas masks to prevent soldiers from being poisoned by chemical exposure, and it has been used to treat water (making it tasteless and odorless) since 1930. read more
Activated charcoal is charcoal that has been treated with oxygen to open up millions of tiny pores between the carbon atoms. According to Encylopedia Britannica: The use of special manufacturing techniques results in highly porous charcoals that have surface areas of 300-2,000 square metres per gram. read more