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Encyclopedia > Methane (data page)
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This page provides supplementary chemical data on methane. Jump to: navigation, search R-phrases S-phrases , , , Flash point −188 °C Autoignition temperature 537 °C Explosive limits 5–15% Supplementary data page Structure and properties n, εr, etc. ...

Contents


Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions. A material safety data sheet or MSDS is a form containing data regarding the properties of a particular substance. ...


Structure and properties

Structure and properties
Index of refraction, nD  ?
Dielectric constant, εr  ? ε0 at ? °C
Bond strength  ?
Bond length  ?
Bond angle  ?
Magnetic susceptibility  ?

The refractive index of a material is the factor by which electromagnetic radiation is slowed down (relative to vacuum) when it travels inside the material. ... The dielectric constant εr (represented as or K in some cases) is defined as the ratio: where εs is the static permittivity of the material in question, and ε0 is the vacuum permittivity. ... In chemistry, bond strength is measured between two atoms joined in a chemical bond. ... Geometry of the water molecule Molecules have fixed equilibrium geometries--bond lengths and angles--that are dictated by the laws of quantum mechanics. ... Geometry of the water molecule Molecules have fixed equilibrium geometries--bond lengths and angles--that are dictated by the laws of quantum mechanics. ... In electrical engineering, the magnetic susceptibility is the degree of magnetization of a material in response to a magnetic field. ...

Thermodynamic properties

Phase behavior
Triple point 90.67 K (−182.48 °C), 0.117 bar
Critical point 190.6 K (−82.6 °C), 46 bar
Std enthalpy change
of fusion, ΔfusHo		 1.1 kJ/mol
Std entropy change
of fusion, ΔfusSo		  ? J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo		 8.17 kJ/mol
Std entropy change
of vaporization, ΔvapSo		  ? J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid		  ? kJ/mol
Standard molar entropy,
Sosolid		  ? J/(mol K)
Heat capacity, cp  ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid		  ? kJ/mol
Standard molar entropy,
Soliquid		  ? J/(mol K)
Heat capacity, cp  ? J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas		 −74.87 kJ/mol
Standard molar entropy,
Sogas		 188 J/(mol K)
Heat capacity, cp 35.69 J/(mol K)

In physics, the triple point of a substance is the temperature and pressure at which three phases (gas, liquid, and solid) of that substance may coexist in thermodynamic equilibrium. ... Chemistry In chemistry, a critical point is the conditions ( temperature, pressure) at which the liquid state of the matter ceases to exist. ... Jump to: navigation, search Heat of fusion is the amount of heat energy which must be absorbed or lost for 1 gram of a substance to change states from a solid to a liquid or vice versa. ... Jump to: navigation, search The standard entropy change of fusion is the increase in entropy when melting a substance. ... Jump to: navigation, search The standard enthalpy change of vaporization is a physical property of substances. ... Jump to: navigation, search The standard entropy change of vaporization is the increase in entropy when vaporizing a substance. ... Jump to: navigation, search ... Jump to: navigation, search In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity (abbreviated Cth or just C, also called thermal capacity) is the ability of matter to store heat. ... Jump to: navigation, search ... Jump to: navigation, search In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity (abbreviated Cth or just C, also called thermal capacity) is the ability of matter to store heat. ... Jump to: navigation, search ... Jump to: navigation, search In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity (abbreviated Cth or just C, also called thermal capacity) is the ability of matter to store heat. ...

Spectral data

UV-Vis
λmax  ? nm
Extinction coefficient, ε  ?
IR
Major absorption bands  ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments		  

Ultraviolet-Visible Spectroscopy or Ultraviolet-Visible Spectrophotometry (UV/ VIS) involves the spectroscopy of photons (spectrophotometry). ... A nanometre (American spelling: nanometer, symbol: nm) is 1. ... The parameter used to describe the interaction of electromagnetic radiation with matter is the complex index of refraction, ñ, which is a combination of a real part and an imaginary part. ... Jump to: navigation, search Image of a small dog taken in mid-infrared (thermal) light (false color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation. ... The metre, or meter (symbol: m) is the SI base unit of length. ... Jump to: navigation, search Nuclear Magnetic Resonance Spectroscopy is the name given to the technique which exploits the magnetic properties of nuclei. ... Jump to: navigation, search Mass spectrometry is a technique for separating ions by their mass-to-charge (m/z) ratios. ...

References

Except where noted otherwise, data relate to standard ambient temperature and pressure. Temperature and air pressure can vary from one place to another on the Earth, and can also vary in the same place with time. ...


Disclaimer applies.</nowiki> and save the page -->


This page provides supplementary chemical data on COMPOUND.


Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions. A material safety data sheet or MSDS is a form containing data regarding the properties of a particular substance. ...


Structure and properties

Structure and properties
Index of refraction, nD  ?
Dielectric constant, εr  ? ε0 at ? °C
Bond strength  ?
Bond length  ?
Bond angle  ?
Magnetic susceptibility  ?

The refractive index of a material is the factor by which electromagnetic radiation is slowed down (relative to vacuum) when it travels inside the material. ... The dielectric constant εr (represented as or K in some cases) is defined as the ratio: where εs is the static permittivity of the material in question, and ε0 is the vacuum permittivity. ... In chemistry, bond strength is measured between two atoms joined in a chemical bond. ... Geometry of the water molecule Molecules have fixed equilibrium geometries--bond lengths and angles--that are dictated by the laws of quantum mechanics. ... Geometry of the water molecule Molecules have fixed equilibrium geometries--bond lengths and angles--that are dictated by the laws of quantum mechanics. ... In electrical engineering, the magnetic susceptibility is the degree of magnetization of a material in response to a magnetic field. ...

Thermodynamic properties

Phase behavior
Triple point  ? K (? °C), ? Pa
Critical point  ? K (? °C), ? Pa
Std enthalpy change
of fusion, ΔfusHo		  ? kJ/mol
Std entropy change
of fusion, ΔfusSo		  ? J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo		  ? kJ/mol
Std entropy change
of vaporization, ΔvapSo		  ? J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid		  ? kJ/mol
Standard molar entropy,
Sosolid		  ? J/(mol K)
Heat capacity, cp  ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid		  ? kJ/mol
Standard molar entropy,
Soliquid		  ? J/(mol K)
Heat capacity, cp  ? J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas		  ? kJ/mol
Standard molar entropy,
Sogas		  ? J/(mol K)
Heat capacity, cp  ? J/(mol K)

In physics, the triple point of a substance is the temperature and pressure at which three phases (gas, liquid, and solid) of that substance may coexist in thermodynamic equilibrium. ... Chemistry In chemistry, a critical point is the conditions ( temperature, pressure) at which the liquid state of the matter ceases to exist. ... Jump to: navigation, search Heat of fusion is the amount of heat energy which must be absorbed or lost for 1 gram of a substance to change states from a solid to a liquid or vice versa. ... Jump to: navigation, search The standard entropy change of fusion is the increase in entropy when melting a substance. ... Jump to: navigation, search The standard enthalpy change of vaporization is a physical property of substances. ... Jump to: navigation, search The standard entropy change of vaporization is the increase in entropy when vaporizing a substance. ... Jump to: navigation, search ... Jump to: navigation, search In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity (abbreviated Cth or just C, also called thermal capacity) is the ability of matter to store heat. ... Jump to: navigation, search ... Jump to: navigation, search In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity (abbreviated Cth or just C, also called thermal capacity) is the ability of matter to store heat. ... Jump to: navigation, search ... Jump to: navigation, search In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity (abbreviated Cth or just C, also called thermal capacity) is the ability of matter to store heat. ...

Spectral data

UV-Vis
λmax  ? nm
Extinction coefficient, ε  ?
IR
Major absorption bands  ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments		  

Ultraviolet-Visible Spectroscopy or Ultraviolet-Visible Spectrophotometry (UV/ VIS) involves the spectroscopy of photons (spectrophotometry). ... A nanometre (American spelling: nanometer, symbol: nm) is 1. ... The parameter used to describe the interaction of electromagnetic radiation with matter is the complex index of refraction, ñ, which is a combination of a real part and an imaginary part. ... Jump to: navigation, search Image of a small dog taken in mid-infrared (thermal) light (false color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation. ... The metre, or meter (symbol: m) is the SI base unit of length. ... Jump to: navigation, search Nuclear Magnetic Resonance Spectroscopy is the name given to the technique which exploits the magnetic properties of nuclei. ... Jump to: navigation, search Mass spectrometry is a technique for separating ions by their mass-to-charge (m/z) ratios. ...

References

Except where noted otherwise, data relate to standard ambient temperature and pressure. Temperature and air pressure can vary from one place to another on the Earth, and can also vary in the same place with time. ...


Disclaimer applies.


  Results from FactBites:
 
Methane - Wikipedia, the free encyclopedia (1187 words)
Methane is extracted from geological deposits as a mineral fuel which is associated with other hydrocarbon fuels sometimes accompanied by helium and nitrogen.
The strength of the carbon-hydrogen covalent bond in methane is among the strongest in all hydrocarbons, and thus its use as a chemical feedstock is limited.
Methane is the main gas that is released by mud volcanoes, eventually accompanied by helium, nitrogen and brines with bromine, iodine and liquid bitumen.
  More results at FactBites »


 

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