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| | The name of the author is Jayson. Since he was eighteen he's been working as an information officer but he ideas on changing it. Alaska is the only location I've been residing in but now I'm contemplating other choices. To play lacross is the factor I love most of all.<br><br>Also visit my page - phone psychic readings ([http://cpacs.org/index.php?document_srl=90091&mid=board_zTGg26 for beginners]) |
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| This page provides supplementary chemical data on [[isobutane]]. <!-- replace with proper wikilink -->
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| == Material Safety Data Sheet == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
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| The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet ([[Material safety data sheet|MSDS]]) for this chemical from a reliable source such as [http://www2.siri.org/msds/index.php SIRI], and follow its directions.
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| == Structure and properties == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
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| {| border="1" cellspacing="0" cellpadding="3" style="margin: 0 0 0 0.5em; background: #FFFFFF; border-collapse: collapse; border-color: #C0C090;"
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| ! {{chembox header}} | Structure and properties
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| | [[Index of refraction]], ''n''<sub>D</sub>
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| | ? <!-- Please omit if not applicable -->
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| | [[Abbe number]]
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| |? <!-- Please omit if not applicable -->
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| | [[Dielectric constant]], ε<sub>r</sub>
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| | ? ε<sub>0</sub> at ? °C <!-- Please omit if not applicable -->
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| | [[Bond strength]]
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| | ? <!-- Specify which bond. Please omit if not applicable -->
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| | [[Bond length]]
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| | ? <!-- Specify which bond. Please omit if not applicable -->
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| | [[Bond angle]]
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| | ? <!-- Specify which angle, e.g. Cl-P-O. Please omit if not applicable -->
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| | [[Magnetic susceptibility]]
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| | ? <!-- Please omit if not applicable -->
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| | [[Surface tension]]
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| | 10.3 dyn/cm at 20°C<br> ''P' 300 kPa
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| |}
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| == Thermodynamic properties == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
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| ! {{chembox header}} | Phase behavior
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| | [[Triple point]]
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| | 113.55K (–159.6 °C), 0.019481 Pa
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| | [[Critical point (chemistry)|Critical point]]
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| | 407.7 K (134.6 °C), 3650 kPa
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| | [[Standard enthalpy change of fusion|Std enthalpy change<br/>of fusion]], Δ<sub>fus</sub>''H''<sup><s>o</s></sup>
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| | 4.54 kJ/mol
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| | [[Standard entropy change of fusion|Std entropy change<br/>of fusion]], Δ<sub>fus</sub>''S''<sup><s>o</s></sup>
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| | 39.92 J/(mol·K)
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| | [[Standard enthalpy change of vaporization|Std enthalpy change<br/>of vaporization]], Δ<sub>vap</sub>''H''<sup><s>o</s></sup>
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| | 21.3 kJ/mol
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| | [[Standard entropy change of vaporization|Std entropy change<br/>of vaporization]], Δ<sub>vap</sub>''S''<sup><s>o</s></sup>
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| | 81.46 J/(mol·K)
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| ! {{chembox header}} | Solid properties
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| | [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>solid</sub>
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| | ? kJ/mol
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| | [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>solid</sub>
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| | ? J/(mol K)
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| | [[Heat capacity]], ''c<sub>p</sub>''
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| | ? J/(mol K)
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| ! {{chembox header}} | Liquid properties
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| | [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>liquid</sub>
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| | ? kJ/mol
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| | [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>liquid</sub>
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| | 200.79 J/(mol K)
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| | [[Heat capacity]], ''c<sub>p</sub>''
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| | 129.70 J/(mol K) –253°C to –13°C
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| ! {{chembox header}} | Gas properties
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| | [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>gas</sub>
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| | –134.2 kJ/mol
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| | [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>gas</sub>
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| | 249.7 J/(mol K)
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| | [[Enthalpy of combustion]], Δ<sub>c</sub>''H''<sup><s>o</s></sup>
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| | –2869 kJ/mol
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| | [[Heat capacity]], ''c<sub>p</sub>''
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| | 95.21 J/(mol K) at 20°C
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| | [[van der Waals equation|van der Waals' constants]]<ref name="lange1522">''Lange's Handbook of Chemistry'' 10th ed, pp 1522-1524</ref>
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| | a = 1304.1 L<sup>2</sup> kPa/mol<sup>2</sup><br> b = 0.1142 liter per mole
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| |}
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| ==Vapor pressure of liquid==
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| | {{chembox header}} | '''P in mm Hg''' || 1 || 10 || 40 || 100 || 400 || 760 || 1520 || 3800 || 7600 || 15200 || 30400|| 45600
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| | {{chembox header}} | '''T in °C''' || –109.2 || –86.4 || –68.4 || –54.1 || –27.1 || –11.7 || 7.5 || 39.0 || 68.8 || 99.5 || — || —
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| Table data obtained from ''CRC Handbook of Chemistry and Physics'' 44th ed.
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| [[Image:logIsoButaneVaporPressure.png|thumb|583px|left|'''Vapor pressure of ''iso''-butane'''. From formula: <math>\scriptstyle \log_{10} P_{mmHg} = 6.74808 - \frac {882.80} {240.0+T}</math> obtained from ''Lange's Handbook of Chemistry'', 10th ed.]]{{Clear}}
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| == Spectral data == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
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| ! {{chembox header}} | [[UV/VIS spectroscopy|UV-Vis]]
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| | [[Lambda-max|λ<sub>max</sub>]]
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| | ? [[Nanometre|nm]]
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| | [[molar absorptivity|Extinction coefficient]], ε
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| ! {{chembox header}} | [[Infrared|IR]]
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| | Major absorption bands
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| | ? cm<sup>−1</sup>
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| ! {{chembox header}} | [[NMR Spectroscopy|NMR]]
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| | [[Proton NMR]] <!-- Link to image of spectrum -->
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| | [[Carbon-13 NMR]] <!-- Link to image of spectrum -->
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| | Other NMR data <!-- Insert special data e.g. <sup>19</sup>F chem. shifts, omit if not used -->
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| ! {{chembox header}} | [[Mass Spectrometry|MS]]
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| | Masses of <br>main fragments
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| | <!-- Give list of major fragments -->
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| |}
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| ==References== | |
| <references/>
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| <!-- [http://webbook.nist.gov/chemistry/ NIST Standard Reference Database] -->
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| Except where noted otherwise, data relate to [[standard ambient temperature and pressure]].
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| [[wikipedia:Chemical infobox|Disclaimer]] applies.
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| {{DEFAULTSORT:Isobutane (Data Page)}}
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| [[Category:Chemical data pages]]
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| [[Category:Alkanes]]
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The name of the author is Jayson. Since he was eighteen he's been working as an information officer but he ideas on changing it. Alaska is the only location I've been residing in but now I'm contemplating other choices. To play lacross is the factor I love most of all.
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