HEY!!! why is charcoal used as an absorbent to absorb gases and colours 25 points ques follow for more best will be marked as a brianlist
Answers
hey mate heres ur answer
Charcoal is a good absorbent because its quite selective and cheap. Its high surface area means nothing if it doesn't bond to the components that you want absorbed and not a lot else- witness a household sponge which has high surface area and mercury- the mercury just slides off. Charcoal is used in the gold mining/processing industry. The gold(and other metals) is oxidised to form cyanide complexes. The charcoal mostly only absorbs the cyanide complexes not all the other rubbish and water. Charcoal wouldn't be much good for the water purification industry if it absorbed water. Charcoal absorbation processes are a multitudinous- its thousands of papers of primary metallurgy(gold).
because of it's huge surface area. While it doesn't bind very many ions/atoms/molecules per surface area