methane (CH4) yog ib qho odorless thiab colorless flammable roj thiab pab raws li ib tug superior roj qhov chaw. Nws autoignites ntawm kwv yees li ntawm 538°C, spontaneously combusting thaum xeeb kub.
Characterized los ntawm ib tug nplaim xiav, methane yuav mus txog ncov kub ntawm 1400°C. Thaum tov nrog cua, nws yuav ua tau explosive Ntawm 4.5% Thiab 16% concentrations. Hauv qab no Harbor, kub hnyiab, thaum saum toj no, Nws sustains ib subdued ntau subdued combustion.