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Dimethylpentane
Dimethylpentane may refer to: * 2,2-Dimethylpentane * 2,3-Dimethylpentane * 2,4-Dimethylpentane 2,4-Dimethylpentane is an alkane with the chemical formula H3C)2CHsub>2CH2. This colorless hydrocarbon is produced in large quantities in oil refineries. It results from the alkylation of isobutane by propylene Propylene, also known as prop ... * 3,3-Dimethylpentane {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2,2-Dimethylpentane
2,2-Dimethylpentane is one of the isomers of heptane. It is also called neoheptane as it contains the (CH3)3C grouping. It has the most extreme properties of the isomers. Preparation A method to produce high purity 2,2-dimethylpentane is to react the grignard reagent of n-propyl bromide (CH3CH2CH2MgBr) with tert-butyl chloride ((CH3)3CCl). ''n''-PrMgCl can be used instead of the bromide. Properties In 1929 Graham Edgar and George Calingaert made 2,2-dimethylpentane and measured its physical characteristics for the first time. The measurements were at 20 °C, not the standard conditions used in later times. For 2,2-dimethylpentane they measured a density of 0.6737 at 20 °C with a rate of change Δd/ΔT of 0.000855. The density and boiling are the lowest of the isomers of heptane. The dielectric constant is 1.915, the lowest of the heptane isomers. The critical temperature is 247.7 °C and critical pressure 28.4 atmospheres. The refractive index at 20° is 1.3823 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2,3-Dimethylpentane
2,3-Dimethylpentane is an organic compound of carbon and hydrogen with formula , more precisely ––––: a molecule of pentane with methyl groups – replacing hydrogen atoms on carbon atoms 2 and 3. It is an alkane ("paraffin" in older nomenclature), a Saturated and unsaturated compounds, fully saturated hydrocarbon; specifically, one of the isomers of heptane. Like typical alkanes, it is a colorless flammable compound; under common ambient conditions, it is a mobile liquid, less dense than water.Alfonso S. Pensado, María J. P. Comuñas, Luis Lugo, and Josefa Fernández (2005): "Experimental Dynamic Viscosities of 2,3-Dimethylpentane up to 60 MPa and from (303.15 to 353.15) K Using a Rolling-Ball Viscometer". ''Journal of Chemical & Engineering Data'', volume 50, issue 3, pages 849–855. 2,3-Dimethylpentane is notable for being one of the two simplest alkanes with enantiomer, optical (enantiomeric) isomerism. The Stereocenter, optical center is the middle carbon of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2,4-Dimethylpentane
2,4-Dimethylpentane is an alkane with the chemical formula H3C)2CHsub>2CH2. This colorless hydrocarbon is produced in large quantities in oil refineries. It results from the alkylation of isobutane by propylene Propylene, also known as propene, is an unsaturated organic compound with the chemical formula CH3CH=CH2. It has one double bond, and is the second simplest member of the alkene class of hydrocarbons. It is a colorless gas with a faint petrole .... Often referred to as "alkylate", it is blended with other gasoline components to give a high octane fuel. Unlike n-heptane, 2,4-dimethylpentane is a desirable fuel because its branched structure allows combustion without knocking. References {{DEFAULTSORT:Dimethylpentane, 2,4- Alkanes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
