2-Methylheptane

Last updated
2-Methylheptane
2-Methylheptan Structural Formula V1.svg
2-methyl-heptane-spaceFill.png
Names
Preferred IUPAC name
2-Methylheptane [1]
Identifiers
3D model (JSmol)
1696862
ChEBI
ChemSpider
ECHA InfoCard 100.008.863 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 209-747-9
PubChem CID
UNII
UN number 1262
  • InChI=1S/C8H18/c1-4-5-6-7-8(2)3/h8H,4-7H2,1-3H3 Yes check.svgY
    Key: JVSWJIKNEAIKJW-UHFFFAOYSA-N Yes check.svgY
  • CCCCCC(C)C
Properties
C8H18
Molar mass 114.232 g·mol−1
AppearanceColourless liquid
Odor Odourless
Density 698 mg mL−1
Melting point −112 to −108 °C; −170 to −163 °F; 161 to 165 K
Boiling point 116.8 to 118.4 °C; 242.2 to 245.0 °F; 389.9 to 391.5 K
Vapor pressure 5.3 kPa (at 37.7 °C)
2.7 nmol Pa−1 kg−1
1.395–1.396
Thermochemistry
252.00 J K−1 mol−1
Std molar
entropy
(S298)
356.39 J K−1 mol−1
−256.5–−253.9 kJ mol−1
−5466.7–−5464.3 kJ mol−1
Hazards
GHS labelling:
GHS-pictogram-flamme.svg GHS-pictogram-exclam.svg GHS-pictogram-silhouette.svg GHS-pictogram-pollu.svg
Danger
H225, H304, H315, H336, H410
P210, P261, P273, P301+P310, P331
NFPA 704 (fire diamond)
NFPA 704.svgHealth 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chlorideFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
0
3
0
Flash point 4.4 °C (39.9 °F; 277.5 K)
Explosive limits 0.98–?%
Related compounds
Related alkanes
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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2-Methylheptane is a colourless liquid, chemical compound which is part of the branched alkane family and is isomeric to octane Where a methyl group has been added to the second carbon in heptane. Its structural formula is (CH3)2CH(CH2)4CH3. [2]

If the standard definition of the prefix "iso-" is strictly used then 2-Methylheptane can be called "Isooctane", however this name is usually used for another much more important isomer of octane 2,2,4-Trimethylpentane [3]

Related Research Articles

<span class="mw-page-title-main">Alkane</span> Type of saturated hydrocarbon compound

In organic chemistry, an alkane, or paraffin, is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single. Alkanes have the general chemical formula CnH2n+2. The alkanes range in complexity from the simplest case of methane, where n = 1, to arbitrarily large and complex molecules, like pentacontane or 6-ethyl-2-methyl-5-(1-methylethyl) octane, an isomer of tetradecane.

<span class="mw-page-title-main">Octane</span> Hydrocarbon compound with the formula C8H18

Octane is a hydrocarbon and an alkane with the chemical formula C8H18, and the condensed structural formula CH3(CH2)6CH3. Octane has many structural isomers that differ by the amount and location of branching in the carbon chain. One of these isomers, 2,2,4-trimethylpentane is used as one of the standard values in the octane rating scale.

<span class="mw-page-title-main">Heptane</span> Chemical compound

Heptane or n-heptane is the straight-chain alkane with the chemical formula H3C(CH2)5CH3 or C7H16. When used as a test fuel component in anti-knock test engines, a 100% heptane fuel is the zero point of the octane rating scale (the 100 point is 100% iso-octane). Octane number equates to the anti-knock qualities of a comparison mixture of heptane and iso-octane which is expressed as the percentage of iso-octane in heptane, and is listed on pumps for gasoline (petrol) dispensed globally.

<span class="mw-page-title-main">Hydrofluoric acid</span> Solution of hydrogen fluoride in water

Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colorless, acidic and highly corrosive. It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon). Elemental fluorine is produced from it. It is commonly used to etch glass and silicon wafers.

<span class="mw-page-title-main">Pentane</span> Alkane with 5 carbon atoms

Pentane is an organic compound with the formula C5H12—that is, an alkane with five carbon atoms. The term may refer to any of three structural isomers, or to a mixture of them: in the IUPAC nomenclature, however, pentane means exclusively the n-pentane isomer, in which case pentanes refers to a mixture of them; the other two are called isopentane (methylbutane) and neopentane (dimethylpropane). Cyclopentane is not an isomer of pentane because it has only 10 hydrogen atoms where pentane has 12.

<span class="mw-page-title-main">2,2,4-Trimethylpentane</span> Chemical compound

2,2,4-Trimethylpentane, also known as isooctane or iso-octane, is an organic compound with the formula (CH3)3CCH2CH(CH3)2. It is one of several isomers of octane (C8H18). This particular isomer is the standard 100 point on the octane rating scale (the zero point is n-heptane). It is an important component of gasoline, frequently used in relatively large proportions (around 10%) to increase the knock resistance of fuel.

PubChem is a database of chemical molecules and their activities against biological assays. The system is maintained by the National Center for Biotechnology Information (NCBI), a component of the National Library of Medicine, which is part of the United States National Institutes of Health (NIH). PubChem can be accessed for free through a web user interface. Millions of compound structures and descriptive datasets can be freely downloaded via FTP. PubChem contains multiple substance descriptions and small molecules with fewer than 100 atoms and 1,000 bonds. More than 80 database vendors contribute to the growing PubChem database.

<span class="mw-page-title-main">Zirconium(IV) chloride</span> Chemical compound

Zirconium(IV) chloride, also known as zirconium tetrachloride, is an inorganic compound frequently used as a precursor to other compounds of zirconium. This white high-melting solid hydrolyzes rapidly in humid air.

<span class="mw-page-title-main">3-Methylheptane</span> Chemical compound

3-Methylheptane is a branched alkane isomeric to octane. Its structural formula is CH3CH2CH(CH3)CH2CH2CH2CH3. It has one stereocenter.

<span class="mw-page-title-main">2-Methylhexane</span> Chemical compound

2-Methylhexane (C7H16, also known as isoheptane, ethylisobutylmethane) is an isomer of heptane. It is structurally a hexane molecule with a methyl group attached to its second carbon atom. It exists in most commercially available heptane merchandises as an impurity but is usually not considered as impurity in terms of reactions since it has very similar physical and chemical properties when compared to n-heptane (straight-chained heptane).

Methanediol, also known as formaldehyde monohydrate or methylene glycol, is an organic compound with chemical formula CH2(OH)2. It is the simplest geminal diol. In aqueous solutions it coexists with oligomers. The compound is closely related and convertible to the industrially significant derivatives paraformaldehyde, formaldehyde, and 1,3,5-trioxane.

<span class="mw-page-title-main">2,5-Dimethylhexane</span> Chemical compound

2,5-Dimethylhexane is a branched alkane used in the aviation industry in low revolutions per minute helicopters. As an isomer of octane, the boiling point is very close to that of octane, but can in pure form be slightly lower. 2,5-Dimethylhexane is moderately toxic.

<span class="mw-page-title-main">Trimethylstibine</span> Chemical compound

Trimethylstibine is an organoantimony compound with the formula Sb(CH3)3. It is a colorless pyrophoric and toxic liquid. It is synthesized by treatment of antimony trichloride and methyl Grignard reagent. It is produced by anaerobic bacteria in antimony-rich soils. In contrast to trimethylphosphine, trimethylstibine is a weaker Lewis base. It is used in the production of some III-V semiconductors.

<span class="mw-page-title-main">2-Methylpentane</span> Chemical compound

2-Methylpentane, trivially known as isohexane, is a branched-chain alkane with the molecular formula C6H14. It is a structural isomer of hexane composed of a methyl group bonded to the second carbon atom in a pentane chain. Using a quantitative structure-activity relationship (QSAR) prediction model, 2-Methylpentane has a research octane number (RON) of 75, motor octane number (MON) of 77, and cetane number (CN) of 29.

<span class="mw-page-title-main">2,3,3-Trimethylpentane</span> Chemical compound

2,3,3-Trimethylpentane is a chemical compound in the family of hydrocarbons which has a formula of C8H18. It is an isomer of octane. It has a role as a human metabolite, a bacterial metabolite and a mammalian metabolite. It is an alkane and a volatile organic compound.

Tetramethylbutane, sometimes called hexamethylethane, is a hydrocarbon with formula C8H18 or (H3C-)3C-C(-CH3)3. It is the most heavily branched and most compact of the many octane isomers, the only one with a butane (C4) backbone. Because of its highly symmetrical structure, it has a very high melting point and a short liquid range; in fact, it is the smallest saturated acyclic hydrocarbon that appears as a solid at a room temperature of 25 °C. (Among cyclic hydrocarbons, cubane, C8H8 is even smaller and is also solid at room temperature.) It is also the most stable C8H18 isomer, with a heat of formation 4.18 kcal/mol (17.5 kJ/mol) lower than that of n-octane, a fact that has been attributed to stabilizing dispersive interactions (electron correlation) between the methyl groups (protobranching).

<span class="mw-page-title-main">2,3-Dimethylhexane</span> Chemical compound

2,3-Dimethylhexane is a structural isomer of octane.

<span class="mw-page-title-main">2,3,4-Trimethylpentane</span> Chemical compound

2,3,4-Trimethylpentane is a branched alkane. It is one of the isomers of octane.

3-Methyl-2-butanol is an organic chemical compound. It is used as a solvent and an intermediate in the manufacture of other chemicals.

Propionitrile, also known as ethyl cyanide and propanenitrile, is an organic compound with the formula CH3CH2CN. It is a simple aliphatic nitrile. The compound is a colourless, water-soluble liquid. It is used as a solvent and a precursor to other organic compounds.

References

  1. "2-METHYLHEPTANE - Compound Summary". PubChem Compound. National Center for Biotechnology Information. 26 March 2005. Retrieved 6 March 2012.
  2. PubChem. "2-Methylheptane". pubchem.ncbi.nlm.nih.gov. Retrieved 2024-02-18.
  3. Clayden, Jonathan (2005). Organic chemistry (Reprinted (with corrections). ed.). Oxford [u.a.]: Oxford Univ. Press. pp.  315. ISBN   978-0-19-850346-0.