SUBJECTS  Octane
   
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Octane

Octane is an alkane Alkane

An alkane is an acyclic saturated [i] hydrocarbon [i]. ... 

 with the chemical formula Chemical formula

A chemical formula is a concise way of expressing information about the atom [i]s that constitute a par ... 

 C8H18. It has 18 isomer Isomer

In chemistry [i], isomers are molecule [i]s with the same chemical formula [i] and often with the same k ... 

s. One of the isomers, 2,2,4-trimethylpentane 2,2,4-Trimethylpentane

2,2,4-Trimethylpentane, also known as isooctane, is an octane [i] isomer [i] whose importance deri ... 

 or isooctane, is of major importance, as it has been selected as the 100 point on the octane rating Octane rating

The octane rating is a measure of the autoignition [i] resistance of gasoline [i] and other fuels used i ... 

 scale, with n-heptane Heptane

Heptane is an alkane [i] with the chemical formula [i] H3C(CH2)5CH3. ... 

 as the zero point. Octane ratings are ratings used to represent the anti-knock performance of petroleum-based fuels , given as the percentage Percentage

A percentage is a way of expressing numbers as fractions [i] of 100 and is often denoted using the percent sign [i] ... 

 of 2,2,4-trimethylpentane in an 2,2,4-trimethylpentane / n-heptane mixture that would have the same performance. It is an important constituent of gasoline Gasoline

Gasoline, also called petrol, is a petroleum [i]-derived liquid [i] mixture consisting primarily o ... 

.

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Encyclopedia

Octane

General
Molecular formula Chemical formula

A chemical formula is a concise way of expressing information about the atom [i]s that constitute a par ... 

 C8H18
SMILES Simplified molecular input line entry specification

The simplified molecular input line entry specification or SMILES is a specification for unambiguo... 

 CCCCCCCC
Molar mass 114.2278 g/mol
Appearance colorless liquid
CAS number [111-65-9]
Properties
Density and phase 0.703 g/ml, liquid
Solubility in water Water

Water is a taste [i]less, odor [i]less substance that is essential to all known forms of life [i] and i ... 

 Immiscible
Melting point −57 °C
Boiling point 125.5 °C
Viscosity Viscosity

Viscosity is a measure of the resistance of a fluid [i] to deform under shear stress [i]. ... 

 0.542 cP at 20 °C
Thermodynamic data
Std enthalpy change
of formation Standard enthalpy change of formation

The standard enthalpy of formation or "standard heat of formation" of a compound is the change of enthalpy [i] ... 

, ?fHoliquid		 −250 kJ/mol
Std enthalpy change
of combustion, ?cHoliquid		 −5430 kJ/mol
Standard molar
entropy, Soliquid		 360 J·K−1·mol−1
Hazards
MSDS Material safety data sheet

A material safety data sheet is a form containing data regarding the properties of a particular substanc... 

 External MSDS Octane

Octane is an alkane [i] with the chemical formula [i] C8H18. ... 

 
EU classification Flammable
Harmful
Dangerous for
the environment
NFPA 704 NFPA 704

NFPA 704 is a standard maintained by the U.S. [i] National Fire Protection Association [i] ... 

R-phrases , , ,
,
S-phrases , , , , ,
, ,
Flash point 13 °C
Autoignition temperature 220 °C
Explosive limits 1.0–6.5%
RTECS number RG8400000
Supplementary data page Octane

Octane is an alkane [i] with the chemical formula [i] C8H18. ... 

Structure and
properties Octane

Octane is an alkane [i] with the chemical formula [i] C8H18. ... 

 n, er, etc.
Thermodynamic
data Octane

Octane is an alkane [i] with the chemical formula [i] C8H18. ... 

 Phase behaviour
Solid, liquid, gas
Spectral data Octane

Octane is an alkane [i] with the chemical formula [i] C8H18. ... 

 UV Ultraviolet-visible spectroscopy

Ultraviolet-visible spectroscopy or ultraviolet-visible spectrophotometry involves the spectroscopy [i] ... 

, IR Infrared spectroscopy

Infrared spectroscopy is the subset of spectroscopy [i] that deals with the Infrared [i] part of the electromagnetic spectrum [i] ... 

, NMR NMR spectroscopy

Nuclear Magnetic Resonance Spectroscopy most commonly known as NMR Spectroscopy is the name given ... 

, MS Mass spectrometry

Mass spectrometry is an analytical technique used to measure the mass-to-charge ratio [i] of ion [i]s. ... 

Related compounds
Related alkane Alkane

An alkane is an acyclic saturated [i] hydrocarbon [i]. ... 

s		 Heptane Heptane

Heptane is an alkane [i] with the chemical formula [i] H3C(CH2)5CH3. ... 


2,2,4-Trimethylpentane 2,2,4-Trimethylpentane

2,2,4-Trimethylpentane, also known as isooctane, is an octane [i] isomer [i] whose importance deri ... 

Except where noted otherwise, data are given for
materials in their standard state Standard state

In chemistry [i], the standard state of a material is its state [i] at 1 bar [i]. ... 




Octane is an alkane Alkane

An alkane is an acyclic saturated [i] hydrocarbon [i]. ... 

 with the chemical formula Chemical formula

A chemical formula is a concise way of expressing information about the atom [i]s that constitute a par ... 

 C8H18. It has 18 isomer Isomer

In chemistry [i], isomers are molecule [i]s with the same chemical formula [i] and often with the same k ... 

s.

One of the isomers, 2,2,4-trimethylpentane 2,2,4-Trimethylpentane

2,2,4-Trimethylpentane, also known as isooctane, is an octane [i] isomer [i] whose importance deri ... 

 or isooctane, is of major importance, as it has been selected as the 100 point on the octane rating Octane rating

The octane rating is a measure of the autoignition [i] resistance of gasoline [i] and other fuels used i ... 

 scale, with n-heptane Heptane

Heptane is an alkane [i] with the chemical formula [i] H3C(CH2)5CH3. ... 

 as the zero point. Octane ratings are ratings used to represent the anti-knock performance of petroleum-based fuels , given as the percentage Percentage

A percentage is a way of expressing numbers as fractions [i] of 100 and is often denoted using the percent sign [i] ... 

 of 2,2,4-trimethylpentane in an 2,2,4-trimethylpentane / n-heptane mixture that would have the same performance. It is an important constituent of gasoline Gasoline

Gasoline, also called petrol, is a petroleum [i]-derived liquid [i] mixture consisting primarily o ... 

.

Octane has 18 isomer Isomer

In chemistry [i], isomers are molecule [i]s with the same chemical formula [i] and often with the same k ... 

s :
  • Octane
  • 2-Methylheptane
  • 3-Methylheptane
  • 4-Methylheptane
  • 3-Ethylhexane
  • 2,2-Dimethylhexane
  • 2,3-Dimethylhexane
  • 2,4-Dimethylhexane
  • 2,5-Dimethylhexane
  • 3,3-Dimethylhexane
  • 3,4-Dimethylhexane
  • 2-Methyl-3-ethylpentane
  • 3-Methyl-3-ethylpentane
  • 2,2,3-Trimethylpentane 2,2,3-Trimethylpentane

    ... 

  • 2,2,4-Trimethylpentane 2,2,4-Trimethylpentane

    2,2,4-Trimethylpentane, also known as isooctane, is an octane [i] isomer [i] whose importance deri ... 

  • 2,3,3-Trimethylpentane
  • 2,3,4-Trimethylpentane
  • 2,2,3,3-Tetramethylbutane

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