pen·​tane | \ ˈpen-ˌtān How to pronounce pentane (audio) \

Definition of pentane

: any of three isomeric alkanes C5H12 that occur especially in petroleum

Examples of pentane in a Sentence

Recent Examples on the Web Thermally expandable microspheres, by contrast, are plastic bubbles, ten microns across, that are filled with a hydrocarbon such as butane, pentane or octane. The Economist, "Crackle, pop, snap Self-destructing glue solves a sticky environmental problem," 28 May 2020 Known in the industry as a fractionator, the plant will receive 110,000 barrels of raw natural gas liquids per day and separate them into their more valuable components such as ethane, propane, butane and pentane. Sergio Chapa, Houston Chronicle, "EPIC Midstream advances two Corpus Christi projects," 12 Dec. 2019 The two types of foam also hold different types of gas: Open-cell bubbles are often filled with water vapor, while closed-cell foams are filled with a variety of other chemicals with better insulating properties, such as pentane. Meredith Fore, WIRED, "What Makes a Good Cooler (According to Physics)?," 3 July 2019 Area residents had worried a flammable liquid called pentane used to help turn turbines could explode or release dangerous gas, but the majority of it has been removed from the site and the wells are being capped. Trevor Hughes, USA TODAY, "Hawaii lava flow destroys 12 more homes as Kilauea volcano continues exploding," 29 May 2018 The report said authorities removed about 60,000 gallons of flammable pentane from the facility. Fox News, "Hawaii volcano lava flow reportedly nears geothermal plant's property," 22 May 2018 Officials removed roughly 50,000 gallons of pentane, a flammable gas similar to lighter fluid used in power generation at the plant, to an off-site industrial park. Washington Post, "Hawaii volcano lava burns 2 buildings at geothermal plant," 1 June 2018 Despite the removal of the pentane, danger remains if the lava reaches the wells. Megan Geuss, Ars Technica, "In Hawaii, lava continues its creep onto grounds of geothermal power plant," 27 May 2018 Meanwhile, the lava in the east rift zone is inching dangerously close to the Puna Geothermal Venture plant that houses 50,000 gallons (190,00 liters) of pentane, a volatile gas. Fox News, "Kilauea volcano could launch 10-ton ballistic boulders in dramatic explosion," 11 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pentane.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pentane

1872, in the meaning defined above

History and Etymology for pentane

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Time Traveler for pentane

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The first known use of pentane was in 1872

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Cite this Entry

“Pentane.” Dictionary, Merriam-Webster, Accessed 24 Oct. 2020.

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More Definitions for pentane


pen·​tane | \ ˈpen-ˌtān How to pronounce pentane (audio) \

Medical Definition of pentane

: any of three isomeric alkanes C5H12 occurring in petroleum especially : the volatile flammable liquid straight-chain isomer that has been used to produce anesthesia

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