Meatán
From Wikipedia, the free encyclopedia
CH4 is ea meatán, an t-alcán (hidreacarbón pairifín) is simplí dá bhfuil ann,[1] agus gás ceaptha teasa atá níos contúirtí ná CO2.[2]
Fíricí Gasta Substaint cheimiceach, Mais mhóilíneach ...
Substaint cheimiceach | aicme eintiteas ceimiceach |
---|---|
Mais mhóilíneach | 16.031 Da |
Fionnachtaí nó aireagóir | Alessandro Volta |
Dáta fionnachtana nó tionscnaimh | 1777 |
Tacsón ina n-aimsítear é | Callyspongia, Callyspongia truncata, Petrosia ficiformis, Petrosia, Petrosia durissima, Dittrichia viscosa, Aspergillus, Mandragora turcomanica, Mandragora officinarum, Stangeria eriopus, Cycas revoluta, Macrozamia riedlei, Dioon spinulosum, Macrozamia communis, Cycas media, Ceratozamia mexicana, Zamia furfuracea, Eumaeus atala, Zamia integrifolia, Datura inoxia, Datura innoxia, Datura discolor agus Elephantopus elatus |
Ról | gás ceaptha teasa agus reducing agent (en) |
Struchtúr ceimiceach | |
Foirmle cheimiceach | CH₄ |
SMILES canónta | |
InChI | Model 3D |
Airí | |
Dlús | 0.717 kg/m³ (a 0 °C, gás) 422.36 kg/m³ (a −161.6 °C, leacht) |
Luas forleata fuaime | 1,337 m/s (−161.5 °C, leacht) 450 m/s (27 °C, gás) |
Móimint leictreach dhépholach | 0 D |
Pointe leáite | −182.49 °C −182.46 °C |
Fiuchphointe | 111.4 K (a 1 atm) −161 °C (a 101 Pa) −161.48 °C (a 101.325 kPa) |
Eantrópach mólarach caighdeánach | 186.3 J/(mol K) |
Móimint leictreach dhépholach | 0 D |
Eantalpacht chaighdeánach an fhoirmithe | −74,520 J/mol |
Combustion enthalpy (en) | −890.3 kJ/mol |
Guais | |
Teocht uathadhainte | 537.8 °C |
Global warming potential (en) | 28 agus 84 |
NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response () | |
Eile | |
éadathachas agus odorlessness (en) |
Dún