The condensed structural formula of the compound acetic Properties of 2-methylpropane: It is a colorless as well as odorless gas. 2023 ChemEssen, Inc. All rights reserved. Write condensed structural formulas for alkanes given complete structural formulas. sorry. It is the simplest alkane with a tertiary carbon atom. Chromatogr., 15, 1992, 105-120. ass: Standard non-polar; Column type: Capillary; CAS no: 75285; Active phase: OV-101; Data type: Linear RI; Authors: Wu, J.; Lu, W., Hydrocarbon analysis by open-tubular column chromatography with programmed temperature for straight run gasoline, Anal. Heat of Vaporization at Normal Boiling Point, LogP (Octanol-Water Partition Coefficient), Ghose-Crippen Octanol-Water Partition Coefficient (logP), Moriguchi Octanol-Water Partition Coefficient (logP), Activity Score for Ion Channel Modulators, Activity Score for Nuclear Receptor Ligands, Normal Mode Frequency Analysis with Animation, Molecular Orbital (HOMO & LUMO) Visualization, quantum Chemical Computation Data (20 sets), Structure Data File (SDF/MOL File) of ISOBUTANE, 4-(hydroxyamino)-N-(5-methyl-1,2-oxazol-3-yl)benzene-1-sulfonamide, PROPANE-1,1,1,2,3,3,3-D7,2-(METHYL-D3)- (6CI,7CI,8CI,9CI). 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. Unfortunately, structural formulas are difficult to type/write and take up a lot of space. Isobutane. The connectivity of atoms (carbon atoms). ; Konukhova, S.V., Gas Chromatographic Identification of Ecologically Safe Freones, Vestn. It has a role as a non-polar solvent. Additionally, two . National Library of Medicine. The condensed formulas show hydrogen atoms right next to the carbon atoms to which they are attached, as illustrated for butane: The ultimate condensed formula is the skeletal formula (sometimes known as a line-angle formula), in which carbon atoms are implied at the corners and ends of lines, and each carbon atom is understood to be attached to enough hydrogen atoms to give each carbon atom four bonds. 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Condensed structural chemical formulas show the hydrogen atoms (or other atoms or groups) right next to the carbon atoms to which they are attached. A structural formula shows all the carbon and hydrogen atoms and the bonds attaching them. Chemists often use condensed structural formulas to alleviate these problems. A condensed structural formula of t-butane is (CH 3) 3 CH, not CH 3 CH 3 CH 3 CH. 2. This information can be used to tell whether isobutane will float (or sink) if dropped in water (Buoyancy). Octane -condensed structural formula- The outer Carbons have 3 Hydrogens. 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. 2-methylpropane is also known as isobutane or methylpropane. Unfortunately, expanded structural formulas are difficult to type/write and take up a lot of space. Khim., 43, 1988, 127-135. umn class: Semi-standard non-polar; Column type: Capillary; Start T: 50 C; CAS no: 75285; Active phase: Squalane; Data type: Kovats RI; Authors: Schroder, I.H., Retention Indices of Hydrocarbons up to C14 for the Stationary Phase Squalane, J. Hi. Chromatogr., 240, 1982, 423-444. 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: 75285; Active phase: Porapack Q; Carrier gas: Nitrogen; Data type: Normal alkane RI; Authors: Zenkevich, I.G. Chromatogr., 7(2), 1989, 88-92. ass: Standard non-polar; Column type: Capillary; CAS no: 75285; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Chen, Y.; Feng, C., QSPR study on gas chromatography retention index of some organic pollutants, Comput. (Rus. III. isobutanol is a natural product . 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. Isobutane is oxidized to tert-butyl hydroperoxide, which is subsequently reacted with propylene to yield propylene oxide. 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. Each carbon atom is understood to be attached to enough hydrogen atoms to give each carbon atom four bonds. Anal. It also shows the functional groups present in the molecule like amine (NH 2 ), alcohol (OH), halogens, and others. An alkane that is propane substituted by a methyl group at position 2. In this isomer of Butane each Carbon is We use several kinds of formulas to describe organic compounds. A condensed structural formula for isohexane can be written as (CH 3) 2 CHCH 2 CH 2 CH 3. Identification of ISOBUTANE Chemical Compound Chemical Structure Description A chemical structure of a molecule includes the arrangement of atoms and the chemical bonds that hold the atoms together. Environ., 39, 2005, 6707-6718. class: Standard non-polar; Column diameter: 0.1 mm; Column length: 20 m; Column type: Capillary; Description: 40C(0.4min) =>10C/min=> 110C=>20C/min =>260C (1min); CAS no: 75285; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.4 um; Data type: Normal alkane RI; Authors: LECO Corporation, Rapid qualitative GC/TOFMS analysis of unleaded gasoline, 2003. class: Standard non-polar; Column diameter: 0.25 mm; Column length: 100 m; Column type: Capillary; Description: 35 0C (13 min) ^ 10 0C/min -> 45 0C (15 min) ^ 1 0C/min -> 60 0C (15 min) ^ 1.9 0C/min -> 200 0C; CAS no: 75285; Active phase: RTX-1 PONA; Carrier gas: He; Phase thickness: 0.5 um; Data type: Normal alkane RI; Authors: Restek, Restek International, 1999 Product Guide, 1(1), 1999, 578-591, In original 578-591. class: Standard non-polar; Column diameter: 0.1 mm; Column length: 20 m; Column type: Capillary; Description: 40C(0.4min) => 10C/min =>110C =>20C/min =>260C (1min); CAS no: 75285; Active phase: DB-1; Carrier gas: He; Phase thickness: 0.4 um; Data type: Normal alkane RI; Authors: LECO Corporation, Rapid qualitative GC/TOFMS analysis of a petroleum refinery reformate standard, 2003. class: Standard non-polar; Column length: 20 ft; Column type: Packed; Description: 50C910min)=>20C/min=>90(6min)=>10C/min=>150C(hold); CAS no: 75285; Active phase: SE-30; Carrier gas: N2; Substrate: Chromosorb W; Data type: Normal alkane RI; Authors: Robinson, P.G. 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. The traditional name isobutane was still retained in the 1993 IUPAC recommendations,[22] but is no longer recommended according to the 2013 recommendations. 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. Gas Chromatogr., 6, 1968, 203-217. umn class: Standard non-polar; Column diameter: 0.15 mm; Column length: 25 m; Column type: Capillary; Start T: 20 C; CAS no: 75285; Active phase: CP Sil 5 CB; Carrier gas: H2; Phase thickness: 2 um; Data type: Kovats RI; Authors: Do, L.; Raulin, F., Gas chromatography of Titan's atmosphere. Anal. When compared to the conventional structural formula, it can be easily noticed that a condensed formula is less lengthy. Give the condensedformula for the compound represented by this line-angle structure: 4. Condensed chemical formulas show the hydrogen atoms (or other atoms or groups) right next to the carbon atoms to which they are attached. Gas Chromatogr., 6, 1968, 203-217. umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 ft; Column type: Packed; Start T: 67 C; CAS no: 75285; Active phase: Squalane; Carrier gas: He; Substrate: Chromosorb P; Data type: Kovats RI; Authors: Hively, R.A.; Hinton, R.E., Variation of the retention index with temperature on squalane substrates, J. Isobutane Molecular Formula CH Average mass 58.122 Da Monoisotopic mass 58.078251 Da ChemSpider ID 6120 More details: Names Properties Searches Spectra Vendors Articles More Names and Synonyms Database ID (s) Validated by Experts, Validated by Users, Non-Validated, Removed by Users 1730720 [Beilstein] 201-147-5 [EINECS] 270-654-1 [EINECS] status page at https://status.libretexts.org. Your subscription to the newsletter is complete. Draw the Lewis structure of the molecule below, showing all atoms and all valence electrons (bonds and lone pairs). 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. It's a kind of butane isomer. Symp. Chemists often use condensed structural formulas to alleviate these problems. Thus, a " complete " structural formula of t-butane (-CH 3 groups are written in a condensed form) is shown on the right. 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. A molecular formula shows only the kinds and numbers of atoms in a molecule. Application a quelques hydrocarbures macromoleculaires purs, Bull. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. 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, also known as i-butane, 2-methylpropane or methylpropane, is a chemical compound with molecular formula HC(CH3)3. . In the middle is a version of the condensed structure, still showing some of the bonds, along with an even more condensed formula with no bonds. Below is an example of a more complicated molecule. Structure of 2-methylpropane: Suggest Corrections 1 Similar questions Chromatogr. The former condensed formula clearly shows that three methyl (-CH 3) groups are bonded to a single carbon atom. ; Paizanskaya, I.L., Identification of hydrocarbons C1-C9 of petrol fractions of oils and condensates in the use of capillary columns with dinonylphthalate, Zh. 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 structural formula shows all the carbon and hydrogen atoms and the bonds attaching them. the carbons, 3 to the Carbon on each end, and 2 to each Carbon in possible *structural formulas* which describe the way in which the We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Legal. 1. The condensed formulas show hydrogen atoms right next to the carbon atoms to which they are attached, as illustrated for butane: Even more abbreviated is a line-angle formula, also called a skeletal structure, in which carbon atoms are implied at the corners and ends of lines, and each carbon atom is understood to be attached to enough hydrogen atoms to give each carbon atom four bonds. Whom life had made ugly in the story of dodong and teang? [7], In the Chevron Phillips slurry process for making high-density polyethylene, isobutane is used as a diluent. Isobutane. Draw a line-angle formula for the compound CH 3 CH 2 CH (CH 3 )CH 2 CH 2 CH 3. A molecular formula shows only the kinds and numbers of atoms in a molecule. As a refrigerant, isobutane poses a fire and explosion risk in addition to the hazards associated with non-flammable CFC refrigerants. Comm., 3, 1980, 38-44. umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 300 ft; Column type: Capillary; Start T: 40 C; CAS no: 75285; Active phase: Squalane; Carrier gas: N2; Data type: Kovats RI; Authors: Matukuma, A., Retention indices of alkanes through C10 and alkenes through C8 and relation between boiling points and retention data, Gas Chromatogr., Int. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Cyclopentane is a cycloalkane that consists of five carbons each bonded with two hydrogens above and below the plane. Khim. Line-angle formulas imply a carbon atom at the corners and ends of lines. This one has two end-atoms (=primary) and two in-betweens (=secondary). Formula: C 4 H 10; Molecular weight: 58.1222; IUPAC Standard . Isobutane is the simplest alkane with a tertiary carbon atom. A molecular formula shows only the kinds and numbers of atoms in a molecule. Basically, Constitutional isomers have the same molecular formula but different structural formulas. Stable. Unfortunately, structural formulas are difficult to type/write and take up a lot of space. [citation needed] The normal boiling point is just a few . ChEBI ID. what makes muscle tissue different from other tissues? Find compounds which contain this structure, Find compounds which resemble this structure, European Molecular Condensed chemical formulas show the hydrogen atoms (or other atoms or groups) right next to the carbon atoms to which they are attached. Cyclohexane C 6 H 12. The ISOBUTANE compound may be called differently depending on the various different situations of industrial applications. bonded to another forming a chain with Hydrogens bonded to each of Molecular Formula: C 4 H 10 O or (CH 3) 2 CHCH 2 OH: Synonyms: 2-Methyl-1-propanol. It is also known as i-butane, 2-methylpropane, or methylpropane. -C-H HI H Condensed Structural Formula: Isobutane Isopentane Virtual Model with Extended Structural Formula . 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. Provide IUPAC name of each molecule you have drawn. A molecular formula shows only the kinds and numbers of atoms in a molecule. Butane, or C4H10, is an alkane natural gas derivative which can be found as two different structural isomers, n-butane or isobutane, or a blend of the two. View the full answer. Org. Instrum. J. Chromatogr. Longest chain - Propane. Khim., 43, 1988, 127-135. umn class: Semi-standard non-polar; Column diameter: 0.22 mm; Column length: 50 m; Column type: Capillary; Start T: 70 C; CAS no: 75285; Active phase: Squalane; Carrier gas: He; Data type: Kovats RI; Authors: Lunskii, M.Kh. Butane has two Gas Chromatogr., , 1967, 506-510. class: Standard non-polar; Column diameter: 0.53 mm; Column length: 60 m; Column type: Capillary; Description: 40C(6min)=>5C/min=>80C=>10C/min=>200C; CAS no: 75285; Active phase: SPB-1; Carrier gas: He; Phase thickness: 5 um; Data type: Normal alkane RI; Authors: Flanagan, R.J.; Streete, P.J. Using isobutane, gasoline-grade "blendstocks" are generated with high branching for good combustion characteristics. Isopentane, also called methylbutane or 2-methylbutane, is a branched-chain saturated hydrocarbon (an alkane) with five carbon atoms, with formula C 5 H 12 or CH(CH 3) 2 (C 2 H 5).. Isopentane is an extremely volatile and extremely flammable liquid at room temperature and pressure.It is also the least dense liquid at standard conditions. The specific gravity of isobutane is the ratio of the density of isobutane to that of a reference substance (Usually water). A structural formula shows all the carbon and hydrogen atoms and the bonds attaching them. Condensed structural formula of I is: a. CH3CH2CH2CH2CH2CH2CH, b. CH3CH2CH2CH(CH3)2CH2 c. CH3CH2(CH3)2CH2CH2CH3 d. CH3CH2CH2CH2(CH2),CH e. CH3CH2CH2CH2CH(CH3)2 9.
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