sulphur trioxide
Britishnoun
Example Sentences
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It is therefore analogous to sulphur trioxide which forms sulphuric acid in a similar way: SO3 + H2O = H2SO4.
From An Elementary Study of Chemistry by McPherson, William
Such oxides as sulphur trioxide, nitrogen pentoxide, etc., do not possess acid properties except in combination with water.
From Heroes of Science Chemists by Muir, M. M. Pattison (Matthew Moncrieff Pattison)
Union takes place at once, and the strongly fuming sulphur trioxide escapes from the jet at the end of the tube, and may be condensed by surrounding the receiving tube with a freezing mixture.
From An Elementary Study of Chemistry by McPherson, William
The olefines—ethylene, &c.—are generally absorbed by a very strong sulphuric acid prepared by adding sulphur trioxide to sulphuric acid to form a mixture which solidifies when slightly cooled.
From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" by Various
Saturated hydrocarbons do not react with sulphur trioxide, but unsaturated hydrocarbons are readily attacked by SO_3.
From Synthetic Tannins by Grasser, Georg
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
