|
gptkbp:instanceOf
|
gptkb:chemical_compound
alkene
|
|
gptkbp:appearance
|
colorless gas
|
|
gptkbp:aroma
|
odorless
|
|
gptkbp:autoignitionTemperature
|
537 °C
|
|
gptkbp:boilingPoint
|
−161.5 °C
|
|
gptkbp:bondAngle
|
109.5°
|
|
gptkbp:CASNumber
|
74-82-8
|
|
gptkbp:chemicalFormula
|
CH4
|
|
gptkbp:component
|
natural gas
|
|
gptkbp:countryOfOrigin
|
worldwide
|
|
gptkbp:criticalFor
|
4.60 MPa
−82.6 °C, 4.60 MPa
|
|
gptkbp:criticalTemperature
|
−82.6 °C
|
|
gptkbp:density
|
0.656 kg/m³ (at 0 °C, 1 atm)
|
|
gptkbp:discoveredBy
|
gptkb:Alessandro_Volta
|
|
gptkbp:discoveredIn
|
1776
|
|
gptkbp:EC_number
|
200-812-7
|
|
gptkbp:environmentalImpact
|
contributes to global warming
|
|
gptkbp:explosiveLimits
|
5–17% in air
|
|
gptkbp:flammability
|
highly flammable
|
|
gptkbp:foundIn
|
gptkb:bar
gptkb:lake
hydrothermal vents
swamps
outer planets
|
|
gptkbp:greenhouseGas
|
yes
|
|
gptkbp:GWP
|
~28-36 (relative to CO2)
|
|
gptkbp:hasBiologicalActivity
|
produced in ruminant digestion
|
|
gptkbp:hasInChIKey
|
InChI=1S/CH4/h1H4
|
|
gptkbp:hasSMILES
|
C
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Metán
|
|
gptkbp:isotopologues
|
gptkb:deuteromethane_(CH3D)
gptkb:tritiomethane_(CH3T)
|
|
gptkbp:IUPACName
|
methane
|
|
gptkbp:meltingPoint
|
−182.5 °C
|
|
gptkbp:molecularWeight
|
16.04 g/mol
|
|
gptkbp:NFPA704
|
Health: 1, Flammability: 4, Instability: 0
|
|
gptkbp:producedBy
|
methanogenic archaea
anaerobic decomposition
|
|
gptkbp:PubChem_CID
|
297
16183
CHEMBL17564
|
|
gptkbp:refractiveIndex
|
1.000444 (gas, 0 °C)
|
|
gptkbp:riskFactor
|
H220 (Extremely flammable gas)
|
|
gptkbp:RTECSNumber
|
PA1490000
|
|
gptkbp:solubility
|
22.7 mg/L (at 20 °C)
|
|
gptkbp:structure
|
tetrahedral
|
|
gptkbp:UNII
|
GV97GQNW16
|
|
gptkbp:uses
|
gptkb:gasoline
hydrogen production
chemical feedstock
|
|
gptkbp:vaporPressure
|
4.6 MPa (at 25 °C)
|
|
gptkbp:bfsParent
|
gptkb:Salta_Province
|
|
gptkbp:bfsLayer
|
6
|