| Name of Gas | 
            Chemical 
              Formula | 
            Molecular 
              Weight | 
            Major 
              Hazards | 
            Odour | 
            Dot 
              label | 
            Dot  Hazard 
              Class | 
          
          
            | Acetylene | 
            C2H2 | 
            26.038 | 
            Fire | 
            Garlic-Like | 
            FG | 
            Flammable Gas | 
          
          
            | Air | 
              | 
            28.975 | 
            High Pressure | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Allene | 
            C3H4 | 
            40.065 | 
            Fire | 
            Sweet | 
            FG | 
            Flammable Gas | 
          
          
            | Ammonia | 
            NH3 | 
            17.03 | 
            Inhalation    and 
Bodily    Contact | 
            Pungent,    Irritating | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Argon | 
            Ar | 
            39.95 | 
            High Pressure 
And Bodily    Contact | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Arsine | 
            AsH3 | 
            77.95 | 
            Inhalation    and 
Fire  | 
            Garlic-Like | 
            PG&FG | 
            Poison A | 
          
          
            | Boron    Tichloride | 
            BCI3 | 
            117.17 | 
            Inhalation    and 
Bodily    Contact | 
            Pungent, 
Irritating | 
            CORR | 
            Corrosive 
Material | 
          
          
            | Boron 11    Tifluoride | 
            B11F3 | 
            67.81 | 
            Inhalation    and 
Bodily    Contact | 
            Pungent,  
Suffocating | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Boron    Tifluoride | 
            BF3 | 
            67.31 | 
            Inhalation    and 
Bodily    Contact | 
            Pungent,  
Suffocating | 
            NFG&P | 
            Nonflammable    Gas | 
          
          
            | Bromine    Trifluoride | 
            BrF3 | 
            136.90 | 
            Inhalation    and 
Bodily    Contact | 
            - | 
            OX&P | 
            Oxidiser | 
          
          
            | 1.3-Butadiene | 
            C4H6 | 
            54.092 | 
            Fire and 
Reactivity | 
            Mild Aromatic | 
            FG | 
            Flammable 
Gas | 
          
          
            | n-Butane | 
            C4H10 | 
            58.12 | 
            fire | 
            Faintly 
Disagreeable | 
            FG | 
            Flammable 
Gas | 
          
          
            | 1-Butene | 
            C4H8 | 
            56.11 | 
            fire | 
            Slightly 
Aromatic | 
            FG | 
            Flammable 
Gas | 
          
          
            | cis-2-Butene | 
            C4H8 | 
            56.11 | 
            fire | 
            Slightly 
Aromatic | 
            FG | 
            Flammable 
Gas | 
          
          
            | trans-2-    Butene | 
            C4H8 | 
            56.11 | 
            fire | 
            Slightly 
Aromatic | 
            FG | 
            Flammable 
Gas | 
          
          
            | Carbon    Dioxide | 
            CO2 | 
            44.01 | 
            High Pressure 
And    Inhalation | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Carbon Monoxide | 
            CO | 
            28.01 | 
            Fire and 
Inhalation | 
            None | 
            FG | 
            Flammable 
Gas | 
          
          
            | Carbonyl    Sulfide | 
            COS | 
            60.075 | 
            Fire and 
Inhalation | 
            Rotten Eggs | 
            FG | 
            Flammable 
Gas | 
          
          
            | Chlorine | 
            CI2 | 
            70.91 | 
            Inhalation    and 
Bodily    Contact | 
            Purgent,  
              Irritating | 
            NFG&P | 
            Nonflammable    Gas | 
          
          
            | Chlorine    Trifuoride | 
            CIF3 | 
            92.45 | 
            Inhalation    and 
Bodily    Contact | 
            Sweet, 
Irritating | 
            OX&P | 
            Oxidiser | 
          
          
            | Cyanogen | 
            CNCN | 
            52.036 | 
            Inhalation | 
            Pungent, 
Almond-Like | 
            PG&FG | 
            Poison A | 
          
          
            | Cyanogen    Chloride | 
            CNCI | 
            61.47 | 
            Inhalation | 
            Irritating 
Odour | 
            PG&FG | 
            Poison A | 
          
          
            | Cyclopropane | 
            C3H6 | 
            42.08 | 
            Asphyxiant | 
            Petroleum    Ether | 
            FG | 
            Flammable Gas | 
          
          
            | Deuterium | 
            D2 | 
            4.032 | 
            fire | 
            None | 
            FG | 
            Flammable Gas | 
          
          
            | Diborane | 
            B2H6 | 
            27.67 | 
            Inhalation, 
Bodily Contact 
And Fire | 
            Sickly Sweet | 
            FG&P | 
            Flammable Gas | 
          
          
            | Dichlorosilane | 
            SIH2CI2 | 
            100.99 | 
            Inhalation, 
Bodily Contact 
And Fire | 
            Pungent, 
Suffocating | 
            FG | 
            Flammable Gas | 
          
          
            | Diethylamine | 
            (CH3)2NH | 
            45.08 | 
            Fire and 
Inhalation | 
            Fishy | 
            FG | 
            Flammable Gas | 
          
          
            | Dimethyl    Ether | 
            (CH3)2NO | 
            46.07 | 
            Fire and 
Inhalation | 
            Slightly 
Ethereal | 
            FG | 
            Flammable Gas | 
          
          
            2,2- 
Dimethylpropane | 
            C5H12 | 
            72.15 | 
            Asphyxiany    and 
Flammable | 
            None | 
            FL | 
            Flammable 
Liquid | 
          
          
            | Disilane | 
            Si2H6 | 
            62.22 | 
            Inhalation    and 
Fire | 
            None | 
            FG | 
            Flammable Gas | 
          
          
            | Ethane | 
            C2H6 | 
            30.07 | 
            Fire | 
            None | 
            FG | 
            Flammable Gas | 
          
          
            | Ethylacetylene | 
            C4H6 | 
            54.09 | 
            Fire | 
            Garlic-Like | 
            FL | 
            Flammable 
Liquid | 
          
          
            | Ethyl    Chloride | 
            C2H5CI | 
            64.52 | 
            Fire | 
            Pungent,     
              Ether-Like | 
            FL | 
            Flammable 
Liquid | 
          
          
            | Ethylene | 
            C2H4 | 
            28.054 | 
            Fire and High 
Pressure | 
            Sweet | 
            FG | 
            Flammable Gas | 
          
          
            | Fluorine | 
            F2 | 
            37.997 | 
            Inhalation    and 
Bodily    Contact | 
            Sharp, 
Penetrating | 
            OX&P | 
            Nonflammable    Gas | 
          
          
            | Germane | 
            GeH4 | 
            76.62 | 
            Inhalation    and 
Fire | 
            Pungent Odour | 
            PG&FG | 
            Poison A | 
          
          
            | Halocarbon 11 | 
            CCI3F | 
            137.7 | 
            Heating to 
Decomposition | 
            Slightly 
Ethereal | 
            Non | 
            Non | 
          
          
            | Halocarbon 12 | 
            CCI3F2 | 
            120.91 | 
            Heating to 
Decomposition | 
            Slightly 
Ethereal | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Halocarbon 13 | 
            CCIF3 | 
            104.46 | 
            Heating to 
Decomposition | 
            Slightly 
Ethereal | 
            NFG | 
            Nonflammable | 
          
          
            | Halocarbon 13    B1 | 
            CBrF3 | 
            148.91 | 
            Heating to 
Decomposition | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Halocarbon 14 | 
            CF4 | 
            88.00 | 
            High Pressure 
And    Suffocation | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Halocarbon 21 | 
            CHCI2F | 
            102.92 | 
            Heating to 
Decomposition | 
            Slightly 
Ethereal | 
            None | 
            None | 
          
          
            | Halocarbon 22 | 
            CHCIF2 | 
            86.47 | 
            Heating to 
Decomposition | 
            Slightly 
Ethereal | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Halocarbon 23 | 
            CHF3 | 
            70.01 | 
            High Pressure 
And    Suffocation | 
            Slightly 
Ethereal | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Halocarbon 113 | 
            CCI2F-CCI2F  | 
            187.38 | 
            Heating to 
Decomposition | 
            Slightly 
Ethereal | 
            None | 
            None | 
          
          
            | Halocarbon 114 | 
            C2CI2F4 | 
            170.93 | 
            Heating to 
Decomposition | 
            Slightly 
Ethereal | 
            None | 
            None | 
          
          
            | Halocarbon 115 | 
            C2CIF5 | 
            154.45 | 
            Heating to 
Decomposition 
And 
Suffocation | 
            Slightly 
Ethereal | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Halocarbon 116 | 
            C2F6 | 
            138.01 | 
            Heating to 
Decomposition 
And 
Suffocation | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Halocarbon    142B | 
            CH3CCIF2 | 
            100.50 | 
            Fire | 
            Slightly 
Ethereal | 
            FG | 
            Flammable Gas | 
          
          
            | Halocarbon 152A    | 
            C2H4F2 | 
            66.05 | 
            Fire | 
            Slightly 
Ethereal | 
            FG | 
            Flammable Gas | 
          
          
            Halocarbon  
C-318 | 
            C4F8 | 
            200.03 | 
            Heating to 
Decomposition | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            Halocarbon  
1132A | 
            C2H2F2 | 
            64.04 | 
            Fire and 
Heating to 
Decomposition | 
            Slightly 
Ethereal | 
            FG | 
            Flammable Gas | 
          
          
            | Helium | 
            He | 
            4.003 | 
            High Pressure 
And    Suffocation | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Hexafluoropropylene | 
            C3F6 | 
            150.03 | 
            Inhalation 
(Mildly    Toxic) | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Hydrogen | 
            H2 | 
            2.016 | 
            Fire and High 
Pressure | 
            None | 
            FG | 
            Flammable Gas | 
          
          
            | Hydrogen    Bromide | 
            HBr | 
            80.92 | 
            Inhalation    and 
Bodily Contact | 
            Irritating | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Hydrogen    Chloride | 
            HCI | 
            36.46 | 
            Inhalation    and 
Bodily Contact | 
            Pungent, 
Suffocating | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Hydrogen    Fluoride | 
            HF | 
            20.01 | 
            Inhalation,Bodily 
Contact,Reactivity | 
            Sharp, 
Penetrating | 
            CORR | 
            Corrosive 
Material | 
          
          
            | Hydrogen    Selenide | 
            H2Se | 
            80.976 | 
            Inhalation,    Bodily 
Contact and    Fire | 
            Disagreeable | 
            FG&P | 
            Flammable Gas | 
          
          
            | Hydrogen    Sulfide | 
            H2S | 
            34.08 | 
            Inhalation    and 
Fire | 
            Rotten Eggs | 
            FG&P | 
            Flammable Gas | 
          
          
            | Iodine    Pentafluoride | 
            IF5 | 
            221.9 | 
            Inhalation    and 
Bodily    Contact | 
            Irritating | 
            OX&P | 
            Oxidiser | 
          
          
            | Isobutane | 
            i-C4H10 | 
            58.12 | 
            Fire | 
            Faintly Sweet | 
            FG | 
            Flammable Gas | 
          
          
            | Isobutylene | 
            C4H8 | 
            56.11 | 
            Fire | 
            Coal Gas | 
            FG | 
            Flammable Gas | 
          
          
            | Krypton | 
            Kr | 
            83.30 | 
            High Pressure 
And    Suffocation | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Methane | 
            CH4 | 
            16.04 | 
            Fire and High 
Pressure | 
            None | 
            NFG | 
            Nonflammable    Gas | 
          
          
            | Methylacetylene | 
            C3H4 | 
            40.065 | 
            Fire, 
moderately 
toxic by 
inhalation, 
narcotic | 
            Sweet | 
            FG | 
            Flammable Gas | 
          
          
            | Methyl    Bromide | 
            CH3Br | 
            94.94 | 
            Inhalation and 
Bodily    Contact                | 
            Chloroform-Like  | 
            P | 
            Poison B | 
          
          
            | 3-Methybutene-1 | 
            C5H10 | 
            70.135 | 
            Fire and 
Asphyxiant | 
            None | 
            FL | 
            Flammable 
Liquid | 
          
          
            | Methyl    Chloride | 
            CH3CL | 
            50.49 | 
            Inhalation,    Fire and 
Bodily    Contact | 
            Faintly Sweet | 
            FG | 
            Flammable Gas | 
          
          
            | Methyl    Fluoride | 
            CH3F | 
            34.03 | 
            Asphyxiant 
And Fire | 
            None | 
            FG | 
            Flammable Gas | 
          
          
            | Methyl    Mercaptan | 
            CH3SH | 
            48.11 | 
            Inhalation    and 
Fire | 
            Extremely | 
            FG | 
            Flammable Gas | 
          
          
            | Monoethylamine | 
            C2H5NH2 | 
            45.08 | 
            Inhalation    and 
Fire | 
            Strong 
Ammoniacal | 
            FL | 
            Flammable 
Liquid | 
          
          
            | Monomethylamine | 
            CH3NH2 | 
            31.058 | 
            Inhalation    and 
Fire | 
            Fishy in Low 
Concentrations, 
Ammonical in High 
Concentrations | 
            FG | 
            Flammable Gas | 
          
          
            | Neon | 
            Ne | 
            20.18 | 
            High Pressure 
And 
Suffocation | 
            None | 
            NFG | 
            Nonflammable | 
          
          
            | Nitric Oxide | 
            NO | 
            30.01 | 
            Inhalation    and 
Reactivity | 
            Slightly 
Irritating | 
            PG | 
            Poison A | 
          
          
            | Nitrogen | 
            N2 | 
            28.01 | 
            High Pressure 
And 
Suffocation | 
            None | 
            NFG | 
            Nonflammable 
Gas | 
          
          
            Nitrogen    Dioxide or 
Nitrogen    Tertoxide | 
            NO2,N2O4 | 
            46.01 | 
            Inhalation    and 
Reactivity | 
            Slightly 
Irritating | 
            Pg&OX | 
            Poison A | 
          
          
            | Nitrogen    Trifluoride | 
            NF3 | 
            71.00 | 
            Inhalation, 
Bodily, 
Contact and 
Reactivity | 
            Moldy | 
            NFG | 
            Nonflammable 
Gas | 
          
          
            | Nitrogen    Trioxide | 
            N2O3 | 
            76.01 | 
            Inhalation, 
Bodily,
Contact | 
            Slightly 
Irritating | 
            PG | 
            Poison A | 
          
          
            | Nitrous Oxide | 
            N2O | 
            44.01 | 
            Support 
Combustion 
Suffocation | 
            Sweet | 
            NFG | 
            Nonflammable 
Gas | 
          
          
            | Oxygen | 
            O2 | 
            32.00 | 
            Fire and High 
Pressure | 
            None | 
            OX | 
            Nonflammable 
Gas | 
          
          
            | Perfluoropropane | 
            C3F8 | 
            188.02 | 
            Suffocation | 
            Faintly Sweet | 
            NFG | 
            Nonflammable 
Gas | 
          
          
            | Phosgene | 
            C3F8 | 
            98.92 | 
            Inhalation | 
            Musty Hay | 
            PG | 
            Poison A | 
          
          
            | Phosphines | 
            PH3 | 
            34.00 | 
            Inhalation    and 
Fire | 
            Garlic or 
Onion-Like | 
            PG&FG | 
            Poison A | 
          
          
            | Propane | 
            C3H8 | 
            44.10 | 
            Fire | 
            Faintly 
Disagreeble | 
            FG | 
            Flammable Gas | 
          
          
            | Propylene | 
            C3H6 | 
            42.08 | 
            Fire | 
            Faintly Sweet | 
            FG | 
            Flammable Gas | 
          
          
            | Silane | 
            SiH4 | 
            32.12 | 
            Spontaneous 
Flammability | 
            Choking | 
            FG | 
            Flammable Gas | 
          
          
            Silicone 
Tetrafluoride | 
            SiF4 | 
            104.08 | 
            Inhalation    and 
Bodily    Contact | 
            Suffocating | 
            NFG | 
            Nonflammable 
Gas | 
          
          
            | Sulfur    Dioxide | 
            SO2 | 
            64.06 | 
            Inhalation | 
            Pungent and 
Irritating | 
            NFG | 
            Nonflammable | 
          
          
            | Sulfur    Hexafluoride | 
            SF6 | 
            146.05 | 
            Suffocation
And 
High Pressure | 
            None | 
            NFG | 
            Nonflammable | 
          
          
            | Sulfur    Tetrafluoride | 
            SF4 | 
            108.06 | 
            Inhalation    and 
Bodily    Contact | 
            Pungent and 
Irritating | 
            NFG | 
            Nonflammable 
Gas | 
          
          
            | Tetrafluoroethylene | 
            C2F4 | 
            100.016 | 
            Fire and 
Reactivity | 
            None | 
            FG | 
            Flammable Gas | 
          
          
            | Trimethylamine | 
            (CH3)3N | 
            59.11 | 
            Inhalation    and 
Fire | 
            Fishy | 
            FG | 
            Flammable Gas | 
          
          
            Tungsten 
Hexafluoride | 
            WF6 | 
            297.84 | 
            Inhalation,
Bodily, 
Contact and 
Reactivity | 
            None | 
            CORR | 
            Corrosive 
Material | 
          
          
            | Vinyl    Chloride | 
            C2H3CI | 
            62.50 | 
            Fire,    Inhalation
And 
Bodily    Contact | 
            Pleasant    Sweet | 
            FG | 
            Flammable Gas | 
          
          
            | Xenon | 
            Xe | 
            131.30 | 
            High Pressure | 
            None | 
            NFG | 
            Nonflammable 
Gas | 
          
          
            |   |