nitrogen tetroxide


: a colorless toxic gas N2O4 that is a dimer of nitrogen dioxide and that in liquid form is used as an oxidizer in rocket engines

Examples of nitrogen tetroxide in a Sentence

Recent Examples on the Web Previous North Korean rockets used hypergolic propellants, typically hydrazine and nitrogen tetroxide, or solid fuels, which are also well-suited for military ballistic missiles. Stephen Clark, Ars Technica, 14 June 2024 During Peregrine's startup sequence after separation from its United Launch Alliance Vulcan rocket, one of the spacecraft's propellant tanks ruptured, spewing precious nitrogen tetroxide into space. Stephen Clark, Ars Technica, 22 Jan. 2024 The leak let nitrogen tetroxide, a combustible component in rocket propellant, seep out enough to ignite a check valve and trigger the explosion. Hailey Rose McLaughlin, Discover Magazine, 17 July 2019 Some of the nitrogen tetroxide appears to have permeated through Teflon seals and interacted with moisture on the other side to produce nitric acid, Mr. Vollmer said. New York Times, 13 Aug. 2021 Evacuations continued for hours as officials tie to determine the threat of the more of the chemical nitrogen tetroxide being released into the air of the rupture of another tank car with the same substance next to the one that imploded., 27 Oct. 2020 Yet the majority of China's launch fleet is powered by hydrazine fuel and nitrogen tetroxide oxidizer. Eric Berger, Ars Technica, 11 Sep. 2020 These reddish clouds were caused by nitrogen tetroxide, the oxidizer that combusts with hydrazine fuel. Eric Berger, Ars Technica, 8 Sep. 2020 Approximately 100 milliseconds prior to ignition of Crew Dragon's eight SuperDraco thrusters, a leaking component allowed about one cup of liquid oxidizer (nitrogen tetroxide, or NTO) into the wrong fuel tank plumbing. Eric Berger, Ars Technica, 13 Jan. 2020

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

Word History

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of nitrogen tetroxide was in 1866

Dictionary Entries Near nitrogen tetroxide

Cite this Entry

“Nitrogen tetroxide.” Dictionary, Merriam-Webster, Accessed 20 Jul. 2024.

Last Updated: - Updated example sentences
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