| Revision as of 17:27, 16 February 2012 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Saving copy of the {{chembox}} taken from revid 461880313 of page 2-Methylhexane for the Chem/Drugbox validation project (updated: ''). |
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{{Chembox |
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{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid of page ] with values updated to verified values.}} |
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| Verifiedfields = changed |
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{{chembox |
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| Watchedfields = changed |
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| verifiedrevid = 451750517 |
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| verifiedrevid = 477214578 |
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| Name = 2-Methylhexane |
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| ImageFile = 2-methylhexane.png |
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| ImageFile = 2-methylhexane-2D-skeletal.svg |
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| ImageFile_Ref = {{chemboximage|correct|??}} |
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| ImageSize = 180px |
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| ImageSize = 160 |
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| ImageName = Full structural formula |
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| ImageFile1 = 2-methylhexane-2D-skeletal.png |
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| ImageName = Skeletal formula of 2-methylhexane |
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| ImageFile1 = 2-methylhexane.png |
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| ImageSize1 = 180px |
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| ImageFile1_Ref = {{chemboximage|correct|??}} |
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| ImageName1 = Skeletal formula |
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| ImageName1 = Skeletal formula of 2-methylhexane with all implicit carbons shown, and all explicit hydrogens added |
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| ImageFile2 = 2-methylhexane-3D-balls.png |
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| ImageFile2 = 2-methylhexane-3D-balls.png |
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| ImageName2 = Ball-and-stick model |
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| ImageFile2_Ref = {{chemboximage|correct|??}} |
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| Section1 = {{Chembox Identifiers |
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| SMILES = CC(C)CCCC |
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| ImageSize2 = 160 |
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| ImageName2 = Ball and stick model of 2-methylhexane |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| PIN = 2-Methylhexane<ref>{{Cite web|title=2-METHYLHEXANE - Compound Summary|url=https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=11582&loc=ec_rcs|work=PubChem Compound|publisher=National Center for Biotechnology Information|access-date=6 March 2012|location=USA|date=26 March 2005|at=Identification and Related Records}}</ref> |
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|Section1={{Chembox Identifiers |
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| CASNo = 591-76-4 |
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| CASNo_Ref = {{cascite|correct|CAS}} |
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| PubChem = 11582 |
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| ChemSpiderID = 11094 |
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| ChemSpiderID = 11094 |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| InChI = 1/C7H16/c1-4-5-6-7(2)3/h7H,4-6H2,1-3H3 |
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| EINECS = 209-730-6 |
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| InChIKey = GXDHCNNESPLIKD-UHFFFAOYAR |
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| UNNumber = 3295 |
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| StdInChI_Ref = {{stdinchicite|correct|chemspider}} |
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| RTECS = MO3871500 |
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| Beilstein = 1696856 |
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| SMILES = CCCCC(C)C |
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| UNII_Ref = {{fdacite|changed|FDA}} |
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| UNII = YI4679P2SP |
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| StdInChI = 1S/C7H16/c1-4-5-6-7(2)3/h7H,4-6H2,1-3H3 |
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| StdInChI = 1S/C7H16/c1-4-5-6-7(2)3/h7H,4-6H2,1-3H3 |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChI_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey = GXDHCNNESPLIKD-UHFFFAOYSA-N |
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| StdInChIKey = GXDHCNNESPLIKD-UHFFFAOYSA-N |
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| CASNo_Ref = {{cascite|correct|CAS}} |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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}} |
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| CASNo = 591-76-4 |
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|Section2={{Chembox Properties |
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| RTECS = MO3871500 |
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| C=7 | H=16 |
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}} |
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| Appearance = Colorless liquid |
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| Section2 = {{Chembox Properties |
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| Odor = Odorless |
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| Formula = C<sub>7</sub>H<sub>16</sub> |
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| MolarMass = 100.20 g/mol |
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| Density = 0.679 g cm<sup>−3</sup> |
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| MeltingPtK = 154.1 to 155.3 |
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| Appearance = colorless liquid |
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| Density = 0.67 g/ml, liquid |
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| BoilingPtK = 362.7 to 363.7 |
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| HenryConstant = 19 nmol Pa<sup>−1</sup> kg<sup>−1</sup> |
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| Solubility = Immiscible |
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| VaporPressure = 15.7 kPa (at 37.7 °C) |
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| MeltingPt = −118 °C (155 K) |
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| RefractIndex = 1.384 |
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| BoilingPt = 90 °C (363 K) |
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| MagSus = -86.24·10<sup>−6</sup> cm<sup>3</sup>/mol |
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}} |
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}} |
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| Section7 = {{Chembox Hazards |
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|Section3={{Chembox Thermochemistry |
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| ExternalMSDS = |
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| DeltaHf = −231.1–−228.5 kJ mol<sup>−1</sup> |
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| EUClass = Flammable ('''F''')<br />Harmful ('''Xn''')<br />Dangerous for<br />the environment ('''N''') |
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| DeltaHc = −4.8127–−4.8103 MJ mol<sup>−1</sup> |
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| NFPA-H = 2 |
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| Entropy = 323.34 J K<sup>−1</sup> mol<sup>−1</sup> |
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| NFPA-R = 0 |
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| HeatCapacity = 222.92 J K<sup>−1</sup> mol<sup>−1</sup> |
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| NFPA-F = 3 |
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}} |
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| FlashPt = −18 °C |
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|Section4={{Chembox Hazards |
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| Autoignition = 220 °C |
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| GHSPictograms = {{GHS flame}} {{GHS exclamation mark}} {{GHS health hazard}} {{GHS environment}} |
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| ExploLimits = 1.0–6.0% |
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| GHSSignalWord = '''DANGER''' |
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}} |
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| HPhrases = {{H-phrases|225|304|315|336|410}} |
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| Section8 = {{Chembox Related |
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| PPhrases = {{P-phrases|210|261|273|301+310|331}} |
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| Function = ]s |
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| NFPA-H = 2 |
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| OtherFunctn = ]<br />] |
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| NFPA-R = 0 |
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| OtherCpds = ] |
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| NFPA-F = 3 |
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}} |
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| FlashPtC = −1 |
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| AutoignitionPtC = 280 |
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| ExploLimits = 1–7% |
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}} |
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|Section5={{Chembox Related |
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| OtherFunction_label = alkanes |
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| OtherFunction = {{Unbulleted list|]|]|]|]|]|]}} |
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| OtherCompounds = {{Unbulleted list|]|]|]|]|]}} |
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}} |
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}} |
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}} |
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'''2-Methylhexane''' (''']<sub>7</sub>]<sub>16</sub>''', also known as '''isoheptane''', '''ethylisobutylmethane''') is an ] of ]. It is structurally a ] molecule with a ] attached to its second carbon atom. It exists in most commercially available heptane merchandises as an ] but is usually not considered as impurity in terms of reactions since it has very similar ] and ] when compared to n-heptane (straight-chained heptane). |
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Being an alkane, 2-methylhexane is insoluble in ], but is soluble in many organic solvents, such as ]s and ]. However, 2-methylhexane is more commonly considered as a ] itself. Therefore, even though it is present in many commercially available heptane products, it is not considered as a destructive impurity, as heptane is usually used as a solvent. Nevertheless, by concise processes of ] and ], it is possible to separate 2-methylhexane from n-heptane. |
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Within a group of isomers, those with more ] tend to ignite more easily and ] more completely. Therefore, 2-methylhexane has a lower ] and ] when compared to heptane. Theoretically 2-methylhexane also burns with a less sooty flame, emitting higher-frequency radiation; however, as heptane and 2-methylhexane differ by only one carbon ], in terms of branching, both burn with a bright yellow flame when ignited. |
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Compared to n-heptane, 2-methylhexane also has lower ] and ]s. A lower density of liquid is found in 2-Methylhexane than heptane. |
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On the ] scale, 2-methylhexane is listed as a reactivity level-0 chemical, along with various other ]s. In fact, most alkanes are unreactive except in extreme conditions, such as combustion or strong ]. At the presence of ] and ], 2-methylhexane, like heptane, combusts mostly completely into ] and ]. With ] and mixed with ]s in solvents, usually ] in ], a ] occurs. |
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==See also== |
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* ] |
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==References== |
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{{Reflist}} |
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*{{cite web |url= http://www.chemexper.com/search/cas/591764.html|title= 2-Methylhexane|publisher= chemexper.com|access-date=22 November 2011}} |
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*{{cite web|url= https://www.mathesongas.com/pdfs/msds/MAT27910.pdf|title= Material Safety Data Sheet|publisher= ChemADVISOR|access-date= 22 November 2011|archive-date= 21 March 2006|archive-url= https://web.archive.org/web/20060321163837/https://www.mathesongas.com/pdfs/msds/MAT27910.pdf|url-status= dead}} |
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*{{cite web |url= http://www.inchem.org/documents/icsc/icsc/eics0658.htm|title= Isoheptane|date= October 2002|work= INCHEM: Chemical Safety Information from Intergovernmental Organizations|publisher= International Programme on Chemical Safety|access-date=22 November 2011}} |
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{{Hydrocarbons}} |
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{{DEFAULTSORT:Methylhexane, 2-}} |
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] |