Control Instruments extensive list of gases.
CAT: Catalytic FTA: Flame Temperature Analyzer FID: Flame Ionization Detector ECM: Electrochemical
IR: Infrared BTU: British Thermal Unit FP: Flash Point LFL:% Lower Flammable Limit
PEL-TWA: Permissible Exposure Limit Time Weighted Average (ppm)
Gas / Vaporsort descending Chemical Formula CAT FTA FID ECM IR BTU FP(°C) FP(°F) LFL PEL-TWA
1-Octene CH2:C7H14 21°C 70°F 0.7%
Acetaldehyde CH3CHO -39°C -38°F 4.0% 200 ppm
Acetic Acid CH3COOH 39°C 103°F 4.0% 10 ppm
Acetone CH3COCH3 -20°C -4°F 2.5% 1000 ppm
Acetonitrile CH3CN 6°C 42°F 3.0% 40 ppm
Acetylene CH:CH 2.5%
Acrolein CH2:CHCHO -26°C -15°F 2.8% 0.1 ppm
Acrylic Acid CH2CHCOOH 50°C 122°F 2.4% 2 ppm
Acrylonitrile CH2:CHCN 0°C 32°F 3.0% 2 ppm
Ammonia NH3 15.0% 50 ppm
Amyl Acetate CH3COOC5H11 16°C 60°F 1.1% 100 ppm
Benzene C6H6 -11°C 12°F 1.2% 1 ppm
Benzyl Alcohol C6H5CH2OH 93°C 200°F 1.3%
Butadiene, 1-3- CH2:CHCH:CH2 2.0% 1 ppm
Butane, n- CH3CH2CH2CH3 -60°C -76°F 1.8% 800 ppm
Butene CH3CH2CH:CH2 1.6%
Butyl Acetate, n- CH3COOC4H9 22°C 72°F 1.7% 150 ppm
Butyl Acrylate CH2:CHCOOC4H9 29°C 84°F 1.3% 10 ppm
Butyl Alcohol, n- CH3(CH2)2CH2OH 37°C 98°F 1.4% 100 ppm
Butyl Alcohol, sec- CH3CH2CHOHCH3 24°C 75°F 1.7% 150 ppm
Butyl Alcohol, tert (CH3)2COHCH3 11°C 52°F 1.9% 100 ppm
Butyl Cellosolve C4H9OCH2CH2OH 71°C 160°F 1.1% 25 ppm
Butyl ether, n- (C4H9)2O 25°C 77°F 1.5%
Butyraldehyde CH3(CH2)2CHO -22°C -8°F 1.9%
Carbon Disulfide CS2 -30°C -22°F 1.3% 20 ppm
Carbon Monoxide CO 12.5% 50 ppm
Carbon Tetrachloride CCL4 10 ppm
Cellosolve Acetate CH3CH2OCH2CH2O2CCH3 60°C 140°F 1.7% 100 ppm
Chlorine Cl2 0.5 ppm
Chlorobenzene C6H5Cl 28°C 82°F 1.8% 75 ppm
Chloroform CHCl3 10 ppm
Cyclohexane C6H12 -20°C -4°F 1.3% 300 ppm
Cyclohexanone CH2:(CH2CH2)2:CO 43°C 111°F 1.1% 50 ppm
Cyclohexene CH2CH2CH2CH2CH:CH -7°C -20°F 1.3% 300 ppm
Cyclopropane (CH2)3 2.4%
Decane CH3(CH2)8CH3 46°C 115°F 0.8%
Diacetone Alcohol CH3COCH2C(CH3)2OH 64°C 148°F 1.8% 50 ppm
Dichlorobenzene, o- C6H4Cl2 66°C 151°F 2.2% 25 ppm
Dichloroethane 1,1- CH3CHCl2 -17°C 2°F 5.4% 100 ppm
Dichloroethylene 1,2- ClCH:CHCl 2°C 36°F 5.6% 200 ppm
Diethanolamine (HOCH2CH2)2NH 172°C 342°F 1.6% 0.5 ppm
Diethyl Carbonate C5H10O3 25°C 77°F
Diethyl Ether C2H5OC2H5 -45°C -49°F 1.9% 400 ppm
Diethyl Ketone C2H5COC2H5 13°C 55°F 1.6% 200 ppm
Diethylene Glycol O(CH2CH2OH)2 124°C 255°F 2.0%
Diisobutyl Ketone [(CH3)2CHCH2]2CO 49°C 120°F 0.8% 50 ppm
Dimethyl Acetamide (CH3)2NC:OCH3 70°C 158°F 1.8% 10 ppm
Dimethyl Carbonate C3H6O3 17°C 63°F 4.2%
Dimethyl Ether (CH3)2O 3.4%
Dimethyl Formamide (CH3)2NCHO 58°C 136°F 2.2% 10 ppm
Dimethyl Sulfide (CH3)2S -18°C 0°F 2.2%
Dimethylamine (CH3)2NH 2.8% 10 ppm
Dimethylhydrazine, 1,1- (CH3)2NNH2 -15°C 5°F 2.0% 0.5 ppm
Dimethylsulfoxide (CH3)2SO 95°C 203°F 2.6%
Dioxane, p- O(CH2)2OCH2CH2 12°C 54°F 2.0% 100 ppm
Dioxolane,1,3 C3H6O2 6°C 21°F 2.3% 10 ppm
Dodecane CH3(CH2)10CH3 74°C 165°F 0.6%
Dowanol PM Glycol Ether - 79°C 175°F 1.0%
Dymel CH3CH3 3.0%
Epichlorohydrin CH2CHOCH2Cl 31°C 88°F 3.8% 5 ppm
Ethane CH3CH3 3.0%
Ethoxyethanol, 2- HOCH2CH2OC2H5 43°C 110°F 1.7% 200 ppm
Ethyl Acetate CH3COOC2H5 -4°C 24°F 2.0% 400 ppm
Ethyl Acrylate CH2:CHCOOC2H5 10°C 50°F 1.4% 25 ppm
Ethyl Alcohol CH3CH2OH 13°C 55°F 3.3% 1000 ppm
Ethyl Benzene C6H5C2H5 21°C 70°F 0.8% 100 ppm
Ethyl Cellosolve - 49°C 120°F 1.8%
Ethyl Chloride C2H5Cl -50°C -58°F 3.8% 1000 ppm
Ethyl Ether C2H5OC2H5 -45°C -49°F 1.9% 400 ppm
Ethylene CH2:CH2 2.7%
Ethylene Dichloride CH2ClCH2Cl 13°C 56°F 6.2% 50 ppm
Ethylene Glycol HOC2H4OH 111°C 232°F 3.2% 50 ppm
Ethylene Glycol Methyl Ethyl Ether Acetate - 45°C 113°F 1.7% 25 ppm
Ethylene Glycol Mono Butyl Ether Acetate C4H9O(CH2)2OOCCH3 71°C 160°F 0.7% 25 ppm
Ethylene Glycol Mono Ethyl Ether HOCH2CH2OC2H5 39°C 102°F 1.8% 25 ppm
Ethylene Glycol Mono Methyl Ether CH3OCH2CH2OH 39°C 102°F 1.8% 25 ppm
Ethylene Oxide CH2OCH2 3.0% 1 ppm
Ethylhexanol, 2- C4H9CH(C2H5)CH2OH 73°C 164°F 0.9%
Freon -
Fuel Oil -
Furan CH:CHCH:CHO -35°C -31°F 2.3%
Furfural OCH:CHCH:CHCHO 60°C 140°F 2.1% 5 ppm
Furfural Alcohol C5H6O2 75°C 167°F 1.8% 50 ppm
Gasoline See Heptane, Hexane -42°C -45°F 1.4% 300 ppm
Glycerol HOCH2CHOHCH2OH 199°C 390°F 1.1%
Heptane CH3(CH2)5CH3 -3°C 25°F 1.1% 500 ppm
Hexane CH3(CH2)4CH3 -21°C -7°F 1.1% 500 ppm
Hexene,1- C6H12 -25°C -13°F 1.2% 50 ppm
Hydrocarbons See specific hydrocarbon
Hydrogen H2 4.0%
Hydrogen Chloride HCl 5 ppm
Hydrogen Cyanide HCN -18°C 0°F 5.6% 10 ppm
Hydrogen Sulfide H2S 4.0% 10 ppm
Isobutane (CH3)3CH 1.8%
Isobutanol (CH3)2CHCH2OH 28°C 82°F 1.7% 100 ppm
Isobutyl Acetate CH3COOCH2CH(CH3)2 18°C 64°F 1.3% 150 ppm
Isobutylene CH2:C(CH3)CH3 1.8%
Isobutyraldehyde (CH3)2CHCHO -18°C -1°F 1.6%
Isopar - 81°C 177°F 1.3%
Isopentane (CH3)2CHCH2CH3 -51°C -60°F 1.4%
Isophorone COCHC(CH3)CH2C(CH3)2CH2 84°C 184°F 0.8% 25 ppm
Isoprene CH2:C(CH3)CH:CH2 -54°C -65°F 1.0%
Isopropanol (CH3)2CHOH 12°C 53°F 2.0% 400 ppm
Isopropyl Acetate (CH3)2CHOOCCH3 2°C 35°F 1.8% 250 ppm
Isopropyl Alcohol (CH3)2CHOH 12°C 53°F 2.0% 400 ppm
Isopropyl Ether (CH3)2CHOCH(CH3)2 -28°C -18°F 1.4% 500 ppm
Jet Fuel - -1°C 30°F 1.3%
Kerosene - 38°C 100°F 0.7%
Lactol Spirits - -7°C 20°F 1.0%
Magie Oils -
Mercaptans -
Methane CH4 5.0%
Methanol CH3OH 11°C 52°F 6.0% 200 ppm
Methoxypropanol CH3OCH2CHOHCH3 32°C 90°F 1.6% 100 ppm
Methyl Acetate CH3COOCH3 -10°C 14°F 3.1% 200 ppm
Methyl Amyl Ketone C7H14O 47°C 117°F 1.1% 100 ppm
Methyl Butyl Ketone CH3CO(CH2)3CH3 25°C 77°F 1.2% 100 ppm
Methyl Chloride CH3Cl 8.1% 100 ppm
Methyl Ether (CH3)2O 3.4%
Methyl Ethyl Ketone CH3COC2H5 -9°C 16°F 1.8% 200 ppm
Methyl Formate CH3OOCH -19°C -2°F 4.5% 100 ppm
Methyl Heptane,3- C8H18 7°C 45°F 1.0%
Methyl Isobutyl Ketone CH3COCH2CH(CH3)2 18°C 64°F 1.2% 50 ppm
Methyl Methacrylate CH2:C(CH3)COOCH3 10°C 50°F 1.7% 100 ppm
Methyl Tert-Butyl Ether C5H12O -27°C -17°F 1.6% 40 ppm
Methylamine CH3NH2 4.9% 5 ppm
Methylene Chloride CH2Cl2 13.0% 50 ppm
Methylpentane, 2- (CH3)2CH(CH2)2CH3 -7°C 20°F 1.2% 500 ppm
Milligrams Carbon per cubic feet -
Mineral Spirits - 40°C 104°F 0.8%
Naptha - -2°C 28°F 0.9% 100 ppm
Napthalene C10H8 79°C 174°F 0.9% 10 ppm
Nitric Oxide NO 25 ppm
Nitrobenzene C6H5NO2 87°C 190°F 1.8% 1 ppm
Nitrogen Dioxide NO2 5.0% 3 ppm
Nitropropane CH3CH2CH2NO2 36°C 96°F 2.2% 25 ppm
Nonane C9H20 31°C 88°F 0.8% 200 ppm
Octane, n- CH3(CH2)6CH3 13°C 56°F 1.0% 500 ppm
Octyl Alcohol CH3(CH2)6CH2OH 81°C 178°F
Oxygen O2
Pentane, n- CH3(CH2)3CH3 -40°C -40°F 1.5% 1000 ppm
Pentanone,3- C5H1OO 13°C 55°F 1.6% 100 ppm
Perchloroethylene Cl2C=CCl2 100 ppm
Phenol C6H5OH 79°C 175°F 1.8% 5 ppm
Phenylpropane C3H7C6H5 30°C 86°F 0.8% 50 ppm
Pinene C10H16 33°C 91°F 0.8%
PPM Carbon by Volume -
Printing Oils -
Propane CH3CH2CH3 2.1% 1000 ppm
Propyl Acetate C3H7OOCCH3 13°C 55°F 1.7% 200 ppm
Propyl Alcohol, n- CH3CH2CH2OH 23°C 74°F 2.2% 200 ppm
Propylene CH2:CHCH3 2.0%
Propylene Glycol CH3CHOHCH2OH 99°C 210°F 2.6%
Propylene Glycol Ethyl Ether C5H12O2 42°C 108°F 1.3% 100 ppm
Propylene Glycol Monomethyl Ether CH3OCH2CHOHCH3 32°C 90°F 1.6% 100 ppm
Propylene Oxide CH3(CHCH2)O -37°C -35°F 2.3% 100 ppm
Pyrrolidone, 1-Methyl-2- C5H9NO 93°C 199°F 0.9%
Silicones -
Styrene C6H5CH:CH2 31°C 88°F 0.9% 100 ppm
Sulfur Dioxide SO2 5.0% 5 ppm
Tert-Butyl Methyl Ether C5H12O -27°C -17°F 1.6% 40 ppm
Tetrachloroethane, 1,1,2,2- C2H2Cl4 5 ppm
Tetrachloroethylene Cl2C=CCl2 100 ppm
Tetradecane CH3(CH2)12CH3 99°C 210°F 0.5%
Tetrahydrofuran OCH2CH2CH2CH2 -14°C 6°F 2.0% 200 ppm
Toluene C6H5CH3 4°C 40°F 1.2% 100 ppm
Trichloroethane, 1-1-1 CH3CCl3 7.5% 350 ppm
Trichloroethylene CHCl:CCl2 8.0% 100 ppm
Trichlorofluoromethane CCl3F 1000 ppm
Triethylamine (C2H5)3N -7°C 16°F 1.2% 25 ppm
Triethylene Glycol HOCH2(CH2OCH2)2CH2OH 177°C 350°F 0.9%
Trimethylamine (CH3)3N 3°C 37°F 2.0% 5 ppm
Trimethylpentane (CH3)3CCH2CH(CH3)2 -12°C 10°F 1.1%
Turpentine C10H16 35°C 95°F 0.8% 100 ppm
Undecane CH3(CH2)9CH3 65°C 149°F 0.6%
Varnish -
Vinyl Acetate CH2:CHOOCCH3 -7°C 18°F 2.6% 10 ppm
Vinyl Chloride CH2:CHCl -78°C -108°F 3.6% 1 ppm
Vinylidene Chloride CH2:CCl2 -28°C -19°F 6.5% 5 ppm
Xylene, m C6H4(CH3)2 32°C 90°F 1.1% 100 ppm