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During last conclave in 2013, which ended with the election of Francis, the black smoke was a mixture of potassium perchlorate, anthracene (a component of coal tar) and sulfur.—Jeanine Santucci, USA Today, 4 May 2025 The presence of a chemical compound used in missile production, sodium perchlorate, was considered a possible cause.—Joseph Wilkinson, New York Daily News, 27 Apr. 2025 With that in mind, Bruce and his colleagues replaced the carbon cathode with one made from nanoporous gold and replaced the organic carbonates and ethers used as electrolytes in earlier lithium-air batteries with lithium perchlorate (LiClO4) solvent and dimethyl sulfoxide.—IEEE Spectrum, 20 July 2012 According to The Wall Street Journal, Tehran has arranged for a shipment that includes ammonium perchlorate—used in solid-fuel ballistic missiles—which could enable the production of up to 800 missiles.—Amir Daftari, MSNBC Newsweek, 6 June 2025 See All Example Sentences for perchlorate
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