Database and to verify that the data contained therein have Parks, G.S. Thermodynamic properties of isobutane, Chem. Res. Cox, J.D. The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of isobutane, Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes, Pittam and Pilcher, 1972 A, 708, 1995, 283-291. umn class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 10 m; Column type: Capillary; Start T: 100 C; CAS no: 115117; Active phase: PoraPLOT Q; Carrier gas: H2; Phase thickness: 10 um; Data type: Kovats RI; Authors: Do, L.; Raulin, F., Gas chromatography of Titan's atmosphere. Sage B.H., [all data], Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References. Heats of organic reactions. A condensed structural formula is a more compact way of drawing the structural formula of a molecule. NIST Standard Reference [all data], Wacker P.F., 1947 Constant pressure heat capacity of liquid. Environ., 39, 2005, 6707-6718. class: Standard non-polar; Column length: 20 ft; Column type: Packed; Description: 50C910min)=>20C/min=>90(6min)=>10C/min=>150C(hold); CAS no: 115117; Active phase: SE-30; Carrier gas: N2; Substrate: Chromosorb W; Data type: Normal alkane RI; Authors: Robinson, P.G. ; Damrauer, R., ; Chupalov, A.A.; Herzschuh, R., Correlation of the Increments of Gas Chromatographic Retention Indices with the Differences of Innermolecular Energies of Reagents and Products of Chemical Reactions, Zh. Thermodyn., 1970, 2, 787-791. Molecular Weight 58.12 . NIST subscription sites provide data under the © 2018 by the U.S. Secretary of Commerce Source(s): I'm a chemist! Rev., 1946, 39, 435-447. Prosen, E.J. CH(CH3)3. Chromatogr., 22(10), 1999, 565-588. ass: Standard non-polar; Column diameter: 0.26 mm; Column length: 52 m; Column type: Capillary; Heat rate: 3 K/min; Start T: 50 C; End T: 220 C; CAS no: 115117; Active phase: OV-101; Carrier gas: N2; Data type: Normal alkane RI; Authors: Chupalov, A.A.; Zenkevich, I.G., Chromatographic Characterization of Structural Transformations of Organic Compounds in Diels-Alder Reaction. Analysis of low-molecular-mass hydrocarbons and nitriles with BPX5 capillary columns, J. Chromatogr. ; Shomate, C.H. Sage B.H., Get your answers by asking now. In this type of formula each C atom and the attached atoms or groups are written in a compact form. This is also called isobutane. Chromatogr., 15, 1992, 105-120. https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:43907, ACD/Labs Percepta Platform - PhysChem Module, US Environmental Protection Agency’s EPISuite™, Compounds with the same molecular formula, Search Google for structures with same skeleton. The purpose of the fee is to recover costs associated Eng. Data from NIST Standard Reference Database 69: The National Institute of Standards and Technology (NIST) Condensed Formula Examples . Technology, Office of Data displays seen below. Pittam, D.A. [all data], Pitzer K.S., 1946 CopyCopied, Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the. [all data], Aston, Kennedy, et al., 1940 Structure, properties, spectra, suppliers and links for: isobutene, Isobutylene, 115-11-7, 126-98-7. form is Database and to verify that the data contained therein have B - John E. Bartmess ; Dekoning, L.J. All rights reserved. ; Kennedy, R.M. Org. & Chromatogr. ; Gronert, S.; Barlow, S.E. Eng. For example; C4H10 = Butane ===> CH3CH2CH2CH3. Chem., 1938, 30, 673-681. Res. DePuy, C.H. Chromatogr., 15, 1992, 75-84. umn class: Standard non-polar; Column length: 2.5 m; Column type: Packed; Start T: 50 C; CAS no: 115117; Active phase: Methyl Silicone; Carrier gas: Nitrogen; Substrate: Celite C-22; Data type: Normal alkane RI; Authors: Huguet, M., Kovats retention indices in the qualitative analysis of light hydrocarbons by gas chromatography, Journees internationales d'etude des methodes de separation immediate et de chromatographie, 1961, 69. ass: Semi-standard non-polar; Column length: 2 m; Column type: Packed; Heat rate: 5 K/min; Start T: 50 C; End T: 220 C; End time: 0 min; Start time: 0 min; CAS no: 115117; Active phase: Porapack Q; Carrier gas: Nitrogen; Data type: Normal alkane RI; Authors: Zenkevich, I.G. Aston, J.G. by the U.S. Secretary of Commerce on behalf of the U.S.A. Data, 1975, 4, 859-869. errors or omissions in the Database. Peerboom, R.A.L. ; Ipatieff, V.N., However, NIST makes no warranties to that effect, and NIST Chem. (Rus. ; Kennedy, W.D. with the development of data collections included in Anal. (4) Condensed Structural Formula: Since it requires time and place to write the structural formulas, condensed structural formulas are used. Chen S.S., Stable. Linear Formula (CH 3) 3 CH . Follow the links above to find out more about the data [all data], Pines, Kvetinskas, et al., 1945 Phys., 1937, 5, 359-363. . [all data], DePuy, Gronert, et al., 1989 [all data], Rossini, 1935 Appl. ; Kennedy, W.D. NIST subscription sites provide data under the Hydrogenation of some simpler olefinic hydrocarbons, The entropies of n-butane and isobutane, with some heat capacity data for isobutane, In a condensed structural formula, or semi-structural formula, covalent bonds are not always shown and atoms of the same type bonded to one another are grouped together. Data Program, but require an annual fee to access. Heat capacities and hindered rotation in n-butane and isobutane, Res. Parks, G.S. Am. There are two possible isomers with this molecular formula. errors or omissions in the Database. Wacker P.F., Heats of combustion, formation, and insomerization of ten C4 hydrocarbons, Standard Reference Data Act. J. ; Pilcher, G., The characterisation of stationary phases and the prediction of retention indices, J. Rossini, F.D., ; Maron, F.W. Phys., 1937, 5, 359-363. Your institution may already be a subscriber. ), , 1992, 66-70, In original 66-70. ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 100 m; Column type: Capillary; Heat rate: 1 K/min; Start T: 30 C; End T: 220 C; CAS no: 115117; Active phase: Petrocol DH; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: White, C.M. J. Hexane is a six-carbon hydrocarbon with a molecular formula of C 6 H 14. A true condensed formula can be written on a single line without any branching above or below it. ; Castanho, R.D.M. Chem. ; Jacobs, P.A., On-Line Single Run Analysis of Effluents from a Fischer-Tropsch Reactor, J. Chromatogr. [all data], Prosen, Maron, et al., 1951 Data Program, but require an annual fee to access. III. NIST Standard Reference The molecular formula for butane is C 4 H 10. also available. Khim., 32(6), 1996, 675-684, In original 675-684. ass: Standard non-polar; Column type: Capillary; CAS no: 115117; Active phase: Polydimethyl siloxanes; Data type: Normal alkane RI; Authors: Zenkevich, I.G. Chem. Chromatogr., 7(2), 1989, 88-92. ass: Standard non-polar; Column type: Capillary; CAS no: 115117; Active phase: Polydimethyl siloxane; Data type: Normal alkane RI; Authors: Junkes, B.S. on behalf of the United States of America. J. Res. Follow the links above to find out more about the data Ind. ; Sutton, D.L., Kovats Retention Indices of Selected Olefins on Bonded Phase Fused Silica Capillaries, J. Hi. Determination of equilibrium constants for butanes and pentanes, Res. Analysis of low-molecular-weight hydrocarbons and nitriles with a CP-Sil-5 CB WCOT capillary column, J. Application a quelques hydrocarbures macromoleculaires purs, Bull. Analysis of low-molecular-weight hydrocarbons and nitriles with a PoraPLOT Q porous polymer coated open-tubular capillary column, J. NBS, 1945, 34, 59-63. on behalf of the United States of America. J. However, NIST makes no warranties to that effect, and NIST J. of all reactions involving this species. Stabilization of Cycloalkyl Carbanions in the Gas Phase, Trending Questions. shall not be liable for any damage that may result from Am.