Shenhai e fakamoʻoni fakaʻauha
Methane (CH4) ko ha odorless mo colorless kasa velangofua pea ʻoku hoko ia ko ha maʻuʻanga lolo maʻolunga ange. ʻOku autoignites ia ʻi he 538 ° c, combusting ʻi he taimi ʻoku aʻu ai ki ha mafana pau.
Fakafotunga ʻe ha ulo lanu pulu, methane lava ke aʻu ki he tumutumu ʻo e mafana ʻi he 1400 ° c. ʻI he fefiofi mo e ʻea, ʻoku hoko ia fakafepakiʻi ʻi he vahaʻa ʻo 4.5% mo e 16% concentrations. ʻI lalo he matapa ko ʻeni, ʻoku vela malohi, lolotonga ʻi ʻolunga, ʻoku ne poupouʻi ha loto vaivai ange ʻa e afi.