Ball-and-stick models of the isobutane molecule

Isobutane, also known as i-butane, 2-methylpropane or methylpropane, is a chemical compound. It is an isomer of butane. Isobutane is a colourless, odourless gas. It is the simplest alkane with a tertiary carbon atom. Isobutane is obtained by isomerization of butane. Isobutane is oxidized to tert-butyl hydroperoxide, which is subsequently reacted with propylene to yield propylene oxide. The tert-butanol that results as a by-product is typically used to make gasoline additives such as methyl tert-butyl ether. Isobutane is also used as a propellant for aerosol spray cans. Isobutane is used as part of blended fuels, especially common in fuel canisters used for camping. Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: [e-mail], Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China

异丁烷（Isobutane），又称i-丁烷（i-butane）、2-甲基丙烷（2-methylpropane）或甲基丙烷（methylpropane），是一种有机化合物，为丁烷的同分异构体。该物质呈无色无臭的气态，是含有叔碳原子的最简单烷烃。异丁烷可通过丁烷的异构化反应制备。异丁烷经氧化反应生成叔丁基过氧化氢，该产物可进一步与丙烯反应合成环氧丙烷，其副产物叔丁醇通常用于制备甲基叔丁基醚（methyl tert-butyl ether）等汽油添加剂。异丁烷还可用作气溶胶喷雾罐的推进剂，同时作为混合燃料的组分之一，在露营用燃料罐中应用尤为广泛。贡献者：陈俊杰，ORCID：0000-0001-5055-4309，电子邮箱：[e-mail]；所属单位：河南理工大学机械与动力工程学院能源与动力工程系，地址：中国河南省焦作市世纪大道2000号，邮编454000。