Explosion limits and toxicity tables for common combustible gases
Substance name | molecular formula | Explosion limit in air (V%) | toxicity | |
Lower limit LEL | Upper UEL | |||
methane | CH4 | 5 | 15 | —— |
ethane | C2H6 | 3 | 15.5 | |
propane | C3H8 | 2.1 | 9.5 | |
butane | C4H10 | 1.9 | 8.5 | |
Pentane (liquid) | C5H12 | 1.4 | 7.8 | |
Hexane (liquid) | C6H14 | 1.1 | 7.5 | |
Heptane (liquid) | CH3(CH2)5CH3 | 1.1 | 6.7 | |
octane (liquid) | C8H18 | 1 | 6.5 | |
Vinyl | C2H4 | 2.7 | 36 | |
Propylene | C3H6 | 2 | 11.1 | |
Butene | C4H8 | 1.6 | 10 | |
Butadiene | C4H6 | 2 | 12 | low toxicity |
Acetylene | C3H4 | 2.3 | 72.3 | |
Cyclopropane | C3H6 | 2.4 | 10.4 | |
Kerosene (liquid) | C10-C16 | 0.6 | 5 | |
city gas | 4 | |||
liquefied petroleum gas | 1 | 12 | ||
gasoline (liquid) | C4-C12 | 1.1 | 5.9 | |
Turpentine (liquid) | C10H16 | 0.8 | ||
Benzene (liquid) | C6H6 | 1.3 | 7.1 | medium |
Toluene | C6H5CH3 | 1.2 | 7.1 | low toxicity |
Ethyl chloride | C2H5CL | 3.8 | 15.4 | medium |
vinyl chloride | C2H3CL | 3.6 | 33 | |
Allyl chloride | C3H5CL | 2.9 | 11.2 | medium |
1.2 Dichloroethane | CLCH2CH2CL | 6.2 | 16 | High toxicity |
carbon tetrachloride | CCL4 | light anesthesia | ||
Chloroform | CHCL3 | medium | ||
Ethylene oxide | C2H4O | 3 | 100 | medium |
Methylamine | CH3NH2 | 4.9 | 20.1 | medium |
Ethylamine | CH3CH2NH2 | 3.5 | 14 | medium |
aniline | C6H5NH2 | 1.3 | 11 | High toxicity |
Dimethylamine | (CH3)2NH | 2.8 | 14.4 | medium |
Ethylenediamine | H2NCH2CH2NH2 | low toxicity | ||
methanol (liquid) | CH3OH | 6.7 | 36 | |
ethanol (liquid) | C2H5OH | 3.3 | 19 | |
Butanol (liquid) | C4H9OH | 1.4 | 11.2 | |
formaldehyde | HCHO | 7 | 73 | |
Acetaldehyde | C2H4O | 4 | 60 | |
Propionaldehyde (liquid) | C2H5CHO | 2.9 | 17 | |
Methyl acetate | CH3COOCH3 | 3.1 | 16 | |
Acetic acid | CH3COOC | 5.4 | 16 | low toxicity |
ethyl acetate | CH3COOC2H5 | 2.2 | 11 | |
acetone | C3H6O | 2.6 | 12.8 | |
butanone | C4H8O | 1.8 | 10 | |
Hydrogen cyanide ( hydrocyanic acid ) | HCN | 5.6 | 40 | highly toxic |
Acrylonitrile | C3H3N | 2.8 | 28 | High toxicity |
Chlorine | CL2 | Stimulate | ||
hydrogen chloride | HCL | |||
Ammonia | NH3 | 16 | 25 | low toxicity |
hydrogen sulfide | H2S | 4.3 | 45.5 | nerve |
sulfur dioxide | SO2 | medium | ||
carbon disulfide | CS2 | 1.3 | 50 | |
ozone | O3 | Stimulate | ||
carbon monoxide | CO | 12.5 | 74.2 | highly toxic |
hydrogen | H2 | 4 | 75 | |
This table is carefully sorted out by Ampal engineers. The sources of values are basically based on "SH3063-1999 Design Specifications for Combustible Gas and Toxic Gas Detection and Alarms in Petrochemical Enterprises", and compared with "Safety Manual of Commonly Used Chemical Hazards". Replenish. | ||||
