Methane is a colorless, odorless, flammable and nontoxic gas.The weight of the air of methane than is 0.54, about half lightthan air. Methane solubility very
Small, in 20 ???, 0100 mpa, 100 unit volume of water, can dissolvethree per unit volume methane. At the same time methane combustionproduces the bright light blue flame, however may slant green,because fuel using glass methane catheter, glass in the system whenloaded with sodium elements, so present yellow flame, methane burnis blue, so mixed seems to be green.