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Encyclopedia > Propane (data page)


This page provides supplementary chemical data on Propane. Flash point -104 °C Autoignition temperature 432 °C R/S statement R: 12 S: 9, 16, 33 RTECS number TX2275000 Supplementary data page Structure and properties n, εr, etc. ...

Contents


Structure and properties

Structure and properties
Dielectric constant (fluid) 1.6 ε0 at 0 °C
Magnetic susceptibility -40

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 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 (96.672 °C), 4249.24 kPa
Heat of fusion
ΔfusH
 ? kJ/mol
Entropy of fusion
ΔfusS
 ? J/(mol·K)
Heat of vaporization
ΔvapH
 ? kJ/mol
Solid properties
Standard enthalpy
of formation
ΔfH°solid
 ? kJ/mol
Standard molar entropy
S°solid
 ? J/(mol K)
Heat capacity Cp  ? J/(mol K)
Liquid properties
Standard enthalpy
of formation
ΔfH°liquid
-119.8 kJ/mol
Standard molar entropy
S°liquid
171.0 J/(mol K)
Heat capacity Cp 98.36 J/(mol K)
Gas properties
Standard enthalpy
of formation
ΔfH°gas
-104.7 kJ/mol
Standard molar entropy
S°gas
 ? J/(mol K)
Heat capacity Cp 73.60 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. ... 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. ... The Entropy of fusion of a substance represents the increase in the degree of disorder involved in the transition from an organized crystalline solid to the disorganized structure of a liquid. ... The heat of vaporization is a physical property of substances. ... The standard enthalpy of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of that substance from its component elements, at their standard states (the most stable form of the element at 25 degrees Celsius and 100 kilopascals). ... 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. ... The standard enthalpy of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of that substance from its component elements, at their standard states (the most stable form of the element at 25 degrees Celsius and 100 kilopascals). ... 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. ... The standard enthalpy of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of that substance from its component elements, at their standard states (the most stable form of the element at 25 degrees Celsius and 100 kilopascals). ... 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. ... 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. ... A centimetre (American spelling: centimeter, symbol: cm) is an SI unit of length. ... Nuclear Magnetic Resonance Spectroscopy is the name given to the technique which exploits the magnetic properties of nuclei. ... Mass spectrometry is a technique for separating ions by their mass-to-charge (m/z) ratios. ...

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. ...


The National Propane Gas Association has a generic MSDS available online here.


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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