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Encyclopedia > Butane (data page)
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This page provides supplementary chemical data on butane. Jump to: navigation, search Butane, also called n-butane, is the unbranched alkane with four carbon atoms, CH3CH2CH2CH3. ...

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  ? 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
21 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 The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the... 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. ... Jump to: navigation, search Heat capacity is a measure of the ability of a body to store heat. ... Jump to: navigation, search The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the... 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. ... Jump to: navigation, search Heat capacity is a measure of the ability of a body to store heat. ... Jump to: navigation, search The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the... 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. ... Jump to: navigation, search Heat capacity is a measure of the ability of a body 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). ... Jump to: navigation, search 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. ...


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  Results from FactBites:
 
Butane - Wikipedia, the free encyclopedia (188 words)
Butane, also called n-butane, is the unbranched alkane with four carbon atoms, CH Butane is also used as a collective term for n-butane together with its only other isomer, isobutane (also called 2-methylpropane), CH Butanes are highly flammable, colorless, easily liquefied gases.
Butane gas is sold bottled as a fuel for cooking and camping, in which case it is referred to commercially as LPG, or, in the UK, calor gas.
It is also used as a petrol component, as a feedstock for the production of base petrochemicals in steam cracking, as fuel for cigarette lighters and as a propellant in aerosol sprays.
Propane - Wikipedia, the free encyclopedia (873 words)
When commonly sold as fuel it is also known as liquified petroleum gas (LPG or LP-gas) and can be a mixture of propane with smaller amounts of propylene, butane and butylene, plus ethanethiol as an odorant to allow the normally odorless propane to be smelled.
Propane is not produced for its own sake, but as a byproduct of two other processes: natural gas processing and petroleum refining.
The processing of natural gas involves removal of propane and butane from the natural gas to prevent condensation of these liquids in natural gas pipelines.
  More results at FactBites »

 
 

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