sulfur trioxide

sulfur trioxide

noun Chemistry.
an irritant, corrosive, low-melting solid, SO3, obtained by the oxidation of sulfur dioxide, used as an intermediate in the manufacture of sulfuric acid.


Origin:
1865–70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Sulfur trioxide is always a great word to know.
So is saturated. Does it mean:
a double sulfate analogous to potassium alum, as aluminum ammonium sulfate, with the formula R2SO4?X2(SO4)3?24H2O, where R is alkali metal or ammonium
a solution containing the maximum amount of solute capable of being dissolved under given conditions
American Heritage
Science Dictionary
sulfur trioxide  
A colorless, highly reactive, corrosive compound that exists either as a liquid or as a solid. As a solid, it exists in three forms that may coexist in a given sample. Sulfur trioxide is used as an intermediate in manufacturing sulfuric acid, and in making sulfonates from organic compounds. Chemical formula: SO3.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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