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Chemical Filtration Table

The table below indicates the filter recommended for use with a wide range of chemicals commonly found in laboratory and manufacturing environments. For each chemical, it also provides an estimate of filter capacity.

Unless otherwise specified, filter efficiency with the chemical indicated approaches 100%. An asterisk (*) indicates poor adsorption by any filter; use of the specified filter is not recommended with these chemicals except where they occur in low concentrations, and frequent exhaust testing is advised.

 

Filter capacity is given as the equilibrium saturation capacity, a standard test procedure for activated carbon (ASTM-D3467). The capacity is expressed as the final filter weight at saturation as a percentage of initial filter weight. The actual capacity obtained will depend on the conditions of use (concentration of contaminant feed, temperature, humidity, etc.).

Note: All data below represent typical, not guaranteed, test results. Terra recommends thorough testing of filter performance in each application prior to exhaust release, and assumes no responsibility for damage or injury that may result as a consequence of improper filter selection or use.

Chemical Filter Satur. Cap. (%)
Acids
Acetic AC 33
Acetic anhydride AC 33
Acrylic AC 40
Butyric AC 40
Caprylic AC 40
Carbolic AC 40
Formic AC/I 20
Lactic AC 40
Osmium tetroxide AC 40
Palmitic AC 40
Phenol AC 40
Proprionic AC 40
Valeric AC 40
Alcohols x x
Amyl AC 40
Butyl AC 40
Cyclohexanol AC 45
Ethyl AC 32
Isopropyl AC 40
Methyl (methanol) AC 32
Propyl AC 40
Aliphatic Hydrocarbons
Acetylene AC 20
Iso-butane AC 10
Butylene AC 10
Butadiene* AC --
Cyclohexane AC 35
N-decane* AC --
Ethane* AC --
Ethylene* AC --
N-heptane* AC --
Heptylene* AC --
Hexane AC 35
Hexylene* AC --
Methane* AC --
N-nonane* AC --
N-octane* AC --
N-octylene* AC --
Pentane AC 26
Propane* AC --
Propylene AC 10
 
 
Chemical Filter Satur. Cap. (%)
Aromatic Hydrocarbons
Benzene AC 40
Napthalene AC 47
Ninhydrin AC 47
Styrene monomer AC 47
Toluene AC 47
Toluidine AC 47
Xylene AC 40
Esters
Butyl acetate AC 40
Cellosolve acetate AC 45
Ethyl acetate AC 40
Ethyl acrylate AC 45
Ethyl formate AC 40
Isopropyl acetate AC 45
Methyl acetate AC 40
Methyl acrylate AC 45
Methyl formate AC 40
Aldehydes & Ketones
Acetone AC 32
Acetaldehyde FOR 10
Acrolein AC 32
Benzaldehyde AC 40
Butyraldehyde AC 32
Caproaldehyde AC 40
Crotonaldehyde AC 40
Cyclohexanol AC 40
Diethyl ketone AC 32
Dipropyl ketone AC 40
Formaldehyde FOR 10
Mesityl oxide AC 40
Methyl butyl ketone AC 40
Methyl ethyl ketone AC/I 32
Methyl isobutyl ketone AC 40
Propionaldehyde AC 32
Valeraldehyde AC 40
Valeric aldehyde AC 40
Ethers
Amyl AC 35
Butyl AC 35
Cellosolve AC 40
Dioxan AC 45
Diethyl (ethyl) ETH 10
Ethylene oxide AC 20
Isopropyl AC 25
Methyl ETH 10
Methyl cellosolve AC 45
Propyl AC 30
Chemical Filter Satur. Cap. (%)
Halogens
Bromine AC 53
Butyl chloride AC 40
Carbon tetrachloride AC 65
Chlorine AC 20
Chlorobenzene AC 53
Chlorobutadiene AC 40
Chloroform AC 60
Chloro picrin AC 65
Chloro nitropropane AC 60
Dibromoethane AC 60
Dichlorobenzene AC 60
Dichlorodifluoromethane AC 20
Dichlorodifluoroethane AC 40
Dichloro ethyl ether AC 53
Dichloromethane AC 53
Dichloromono-fluoromethane AC 20
Dichloropropane AC 53
Dichlorotetra-fluoroethane AC 20
Ethyl bromide AC 20
Ethyl chloride AC 20
Ethylenechlorohydrin AC 40
Ethylene dichloride AC 53
Fluorotrichloro-methane AC 50
FREON®(BP> -20°C) AC 45
Hydrogen bromide AC/I 5
Hydrogen chloride AC/I 4
Hydrogen iodide AC/I 7
Iodine AC 55
Iodoform AC 53
Methyl bromide AC 25
Methyl chloride AC 20
Methyl chloroform AC 45
Methylene chloride AC 45
Monochlorobenzene AC 45
Paradichlorobenzene AC 45
Perchloroethylene AC 45
Propyl chloride AC 40
Tetrachloroethane AC 53
Tetrachloroethylene AC 53
Vinyl chloride AC 20
Sulfur Compounds
Carbon disulfide AC 20
Dimethyl sulfate AC 50
Ethyl mercaptan SUL 40
Hydrogen sulfide SUL 20
Mercaptans ­ high MW SUL 40
Sulfur dioxide AC/I 10
Sulfur trioxide AC/I 20
Sulfuric acid AC/I 40
Tetrahydrothiapene AC 40
Chemical Filter Satur. Cap. (%)
Nitrogen Compounds
Ammonia AM 10
Amines ­ low MW AM 10
Amines ­ high MW AM 40
Aniline AC 40
Diethyl amine AM 20
Diethyl aniline AC 53
Dimethyl amine AM 20
Ethyl amine AM 20
Hydrogen cyanide CYN 20
Indole AC 53
Nicotine AC 40
Nitric acid fumes AC/I 10
Nitrobenzene AC 53
Nitroethane AC 53
Nitrogen dioxide* AC/I
Nitromethane AC 40
Nitropropane AC 40
Nitrotoluene AC 53
Pyridine AM 53
Urea AC 53
Uric acid AC 53
Miscellaneous
Adhesives AC 40
Animal Odors ALK 30
Camphor AC 40
Carbon monoxide* AC
Carbon dioxide* AC
Citrus fruits AC 40
Cooking odors AC 40
Deodorizers AC 20
Detergents AC 40
Hospital odors ACD 30
Human odors ACD 30
Leather AC 30
Ozone AC 30
Perfumes AC 30
Gasoline AC 40
Putrescine ACD 30
Resins AC 30
Toilet odors ALK 30
Filter Types
ACD Organic Acid SUL Sulphur
AC/I Inorganic Acid ETH Ether
ALK Alkaline Odor CYN Cyanide
FOR Formaldehyde
AC Activated Carbon
AM Amines (nitrogen compounds)
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