iso·​bu·​tane ˌī-sō-ˈbyü-ˌtān How to pronounce isobutane (audio)
: a gaseous branched-chain hydrocarbon (CH3)3CH isomeric with normal butane that is used especially as a fuel

Examples of isobutane in a Sentence

Recent Examples on the Web Chemicals like butane, isobutane, and propane are often used as propellants to help spray the oil from the can. Audrey Noble, Vogue, 25 Mar. 2024 The best camp stoves for winter camping will offer great wind resistance as well as fuel that won’t freeze, like white gas or isobutane (a mix of propane and isobutane). Lauren Breedlove, Travel + Leisure, 21 Mar. 2024 All of the cooking systems components — isobutane fuel canister, titanium regulator, fuel-can stabilizer, and lighter — pack inside the .8-liter FluxRing cook pot. Kevin Brouillard, Travel + Leisure, 7 Aug. 2023 Backcountry, Moosejaw Canister stoves might have the market corned on ease of use, but liquid-fuel white gas stoves like the WhisperLite offer the most versatility, especially internationally, where isobutane canisters are less available. Matt Jancer, Wired, 24 Nov. 2021 Comparing just the fuel types, propane is better suited for camping in colder climates than butane and isobutane. Kevin Brouillard, Travel + Leisure, 23 Mar. 2023 The compact stove runs on isobutane-propane canisters, delivering 9,000 BTU, and is able to boil a liter of water in just a few minutes. Kevin Brouillard, Travel + Leisure, 23 Mar. 2023 Until the past few years, it’s been virtually impossible to buy a full-sized refrigerator in the United States that uses climate-friendly refrigerants such as isobutane. Phil McKenna, The Courier-Journal, 19 Apr. 2021 Do not fly to rural Kyrgyzstan and expect to find isobutane canisters. Mike Thurber, Outside Online, 16 Aug. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'isobutane.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


International Scientific Vocabulary

First Known Use

1876, in the meaning defined above

Time Traveler
The first known use of isobutane was in 1876

Dictionary Entries Near isobutane

Cite this Entry

“Isobutane.” Dictionary, Merriam-Webster, Accessed 16 Apr. 2024.

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