Gas propellants, namely, gas propellants for aerosols; gases for catalytic purposes, namely, coal gas for catalytic purposes, coke gas for catalytic purposes, natural gas for catalytic purposes, methane deposit gas for catalytic purposes; gases for cooling, namely, butane, pentane, propane and ethane; gases for the manufacture of electrode binders and refractory binders; gases for the neutralization of coal tar pitches, petroleum pitches, dyes, plant pesticides, plastics, pharmaceutics, plast...