A lot vs. Alot: 9 Grammatical Pitfalls

sulfur trioxide

noun, Chemistry
an irritant, corrosive, low-melting solid, SO 3 , obtained by the oxidation of sulfur dioxide, used as an intermediate in the manufacture of sulfuric acid.
Also called sulfuric anhydride.
1865-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for sulfur trioxide
  • sulfur trioxide, not sulfuric acid, is extremely hygroscopic.
  • Eventually, if it comes in contact with ozone or hydrogen peroxide, it can be converted to sulfur trioxide.
sulfur trioxide in Science
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.
Cite This Source

Word of the Day

Difficulty index for sulfur trioxide

Few English speakers likely know this word

Word Value for sulfur

Scrabble Words With Friends