Activated Carbon Adsorption Rates

Retentivity of vapours by activated carbon

(Percentage retained (in dry air at 20C at atmospheric pressure) by weight)

Substance Retention %
Acetaldehyde 7
Acetic acid 30
Acetone 15
Ammonia Negligible
Amyl alcohol 35
Benzene 24
Body odour High
Butane 8
Butyl alcohol 30
Butyl chloride 25
Butyl ether 20
Butyric acid 35
Camphor 20
Caprylic acid 35
Chlorine 15 (dry)
Chloroform 40
Cooking odours High
Cresol 30
Decane 25
Diethyl ketone 30
Ethyl acetate 19
Ethyl alcohol 21
Ethylene 3
Ethyl ether 15
Ethyl mercaptan 10
Formaldehyde Negligible
Formic acid 7
Hexane 16
Hydrogen chloride 12
Hydrogen fluoride 10
Hydrogen sulphide 1
Iodine 40
Isopropyl alcohol 26
Menthol 20
Methyl acetate 16
Methyl alcohol 10
Methyl ethyl ketone 25
Naphthalene 30
Nicotine 25
Nitrobenzene 20
Ozone Decomposes
Pentane 12
Phenol 30
Propane 5
Pyridine 25
Skatole 25
Sulphur trioxide 10
Toluene 29
Water 0
Xylene 34

 

Since all processes can, and do vary, the figures offered here are merely as a guide and should not be used to infer suitability for a particular system or situation.