Comm., 5, 1982, 325-328. umn class: Standard non-polar; Column diameter: 0.50 mm; Column length: 150 m; Column type: Capillary; Start T: 20 C; CAS no: 75285; Active phase: OV-1; Carrier gas: He; Data type: Kovats RI; Authors: Nijs, H.H. Isobutane is the principal feedstock in alkylation units of refineries. The traditional name isobutane was still retained in the 1993 IUPAC recommendations,[22] but is no longer recommended according to the 2013 recommendations. For physicochemical, thermodynamic, transport, spectra, and other property data & information, the followings are available from Mol-Instincts, a chemical database based on quantum chemical computations: The SMILES string of ISOBUTANE is CC(C)C, which can be can be imported by most molecule editors for conversion back into two-dimensional drawings or three-dimensional models of the ISOBUTANE. For example, we can represent pentane (CH3CH2CH2CH2CH3) and isopentane [(CH3)2CHCH2CH3] as follows: Parentheses in condensed structural formulas indicate that the enclosed grouping of atoms is attached to the adjacent carbon atom. Chromatogr., 591, 1992, 297-301. umn class: Standard non-polar; Column diameter: 0.25 mm; Column length: 100 m; Column type: Capillary; Start T: 60 C; CAS no: 75285; Active phase: CP Sil 2; Phase thickness: 0.25 um; Data type: Kovats RI; Authors: Estel, D.; Mohnke; Biermans; Rotzsche, The analysis of C4-C11 hydrocarbons in naphtha and reformate with a new apolar fused silica column, J. Hi. An unknown error occurred. Soc., 48, 2001, 739-749. umn class: Standard non-polar; Column diameter: 0.28 mm; Column length: 74.6 m; Column type: Capillary; Start T: 50 C; CAS no: 75285; Active phase: Methyl Silicone; Carrier gas: N2; Data type: Normal alkane RI; Authors: Xu, Y., Capillary gas chromatographic analysis of individual hydrocarbons in catalytic cracking gasoline boiling below 100 C, Chin. Isobutane | C4H10 | CID 6360 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. A substance used in a thermodynamic heat pump cycle or refrigeration cycle that undergoes a phase change from a gas to a liquid and back. Which of the following structures is used to represent isobutane? Basically, Constitutional isomers have the same molecular formula but different structural formulas. 5. Properties of 2-methylpropane: It is a colorless as well as odorless gas. Isobutane is oxidized to tert-butyl hydroperoxide, which is subsequently reacted with propylene to yield propylene oxide. 1SD, UK +44 (0)1223 49 44 44, Copyright EMBL-EBI 2018 | EBI is an outstation of the European Molecular A structural formula shows all the carbon and hydrogen atoms and the bonds attaching them. The molecular formula of ISOBUTANE is available in chemical formula page of ISOBUTANE, which identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element. CAS Registry Number: 75-28-5; Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java . Such a formula does not directly tell how the various atoms are interbonded. [Note: Shipped as a liquefied compressed gas. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Because the carbons on the left are drawn straight across, we cannot see corners easily, so bend your lines (zig-zag) so that the corners are apparent. : none. Biology Laboratory | Terms of use. isobutane. The ISOBUTANE structure data file can be imported to most of the cheminformatics software systems and applications. Source: Mol-Instincts Chemical Database, Predicted on Quantum Chemical Computations. Draw line-angle formulas given structural formulas. We use several kinds of formulas to describe organic compounds. A molecular formula shows only the kinds and numbers of atoms in a molecule. n-Butane has the condensed structural Write condensed structural formulas for alkanes given complete structural formulas. ChemicalBook:CB3429086, eMolecules:5756850, MolPort-005-310-458, ZINC000005998961. Write condensed structural formulas for alkanes given complete structural formulas. 1.1, California Environmental Protection Agency, Air Resources Board, El Monte, California, 1997, 22. umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 120 m; Column type: Capillary; Start T: 100 C; CAS no: 75285; Active phase: Squalane; Carrier gas: He; Data type: Kovats RI; Authors: Lulova, N.I. & Chromatogr. In this isomer, 3 Carbons are bonded to a single Carbon A molecular formula shows only the kinds and numbers of atoms in a molecule. class: Standard non-polar; Column diameter: 0.2 mm; Column length: 100 m; Column type: Capillary; Description: 5C(10min)=>5C/min=>50C(48min)=>1.5C/min=>195C(91min); CAS no: 75285; Active phase: Petrocol DH-100; Carrier gas: He; Data type: Kovats RI; Authors: Haagen-Smit Laboratory, Procedure for the detailed hydrocarbon analysis of gasolines by single column high efficiency (capillary) column gas chromatography, SOP NO. 2023 ChemEssen, Inc. All rights reserved. 2-methylpropane is also known as isobutane or methylpropane. Chemists often use condensed structural formulas to alleviate these problems. Write the condensedformula for each Lewis structure. Since the molecular formula of Butane is C4H10, the condensed Conversion of complicated chemical-related units is no longer sophisticated with the aid of UnitPot. II. 4. The tert-butanol that results as a by-product is typically used to make gasoline additives such as methyl tert-butyl ether (MTBE). Please try again or contact us. Formula: C 4 H 10; Molecular weight: 58.1222; IUPAC Standard . Res. It is a primary alcohol and an alkyl alcohol. For example, the molecular formula C4H10 tells us there are 4 carbon atoms and 10 hydrogen atoms in a molecule, but it doesnt distinguish between butane and isobutane. We use several kinds of formulas to describe organic compounds. An expanded structural formula shows all the carbon and hydrogen atoms and the bonds attaching them. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Draw a line-angle formula for the compound CH 3 CH 2 CH (CH 3 )CH 2 CH 2 CH 3. The condensed structural formula of the compound acetic ; Kail, S.; Spock, P.S., Linear temperature programmed retention indices of gasoline range hydrocarbons and chlorinated hydrocarbons on cross-linked polydimethylsiloxane, J. Hi. 8. For example, we can represent pentane (CH3CH2CH2CH2CH3) and isopentane [(CH3)2CHCH2CH3] as follows: Parentheses in condensed structural formulas indicate that the enclosed grouping of atoms is attached to the adjacent carbon atom. As the slurried polyethylene is removed, isobutane is "flashed" off, and condensed, and recycled back into the loop reactor for this purpose.[8]. For example, the molecular formula C4H10 tells us there are 4 carbon atoms and 10 hydrogen atoms in a molecule, but it doesnt distinguish between butane and isobutane. Additionally, two . Requested URL: byjus.com/question-answer/what-is-the-structural-formula-for-2-methylpropane/, User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.5 Mobile/15E148 Safari/604.1. Line-angle formulas imply a carbon atom at the corners and ends of lines. For example, the molecular formula C 4 H 10 tells us there are 4 carbon atoms and 10 hydrogen atoms in a molecule, but it doesn't distinguish between butane and isobutane. An alkane that is propane substituted by a methyl group at position 2. The molecular weight of ISOBUTANE is available in molecular weight page of ISOBUTANE, which is calculated as the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element in the molecular formula. Isobutane is used as a refrigerant. Images of the chemical structure of ISOBUTANE are given below: The 2D chemical structure image of ISOBUTANE is also called skeletal formula, which is the standard notation for organic molecules. Give the structural formula for the compound represented by this line-angle formula: Answers Show Answer The chemical bonding within the molecule is also shown, either explicitly or implicitly. Chemists often use condensed structural formulas to alleviate these problems. Isobutane is used as a precursor molecule in the petrochemical industry, for example in the synthesis of isooctane.[6]. Anal. Symp. A structural formula shows all the carbon and hydrogen atoms and the bonds attaching them. Condensed chemical formulas show the hydrogen atoms (or other atoms or groups) right next to the carbon atoms to which they are attached. Give the condensedformula for the compound represented by this line-angle structure: 4. USC Upstate: CHEM U109 - Chemistry of Living Things (Mueller), { "11.01_Organic_Chemistry" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.
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