sulfurous acid
a colorless liquid, H2SO3, having a suffocating odor, obtained by dissolving sulfur dioxide in water, known mainly by its salts, which are sulfites: used chiefly in organic synthesis and as a bleach.
Origin of sulfurous acid
1Words Nearby sulfurous acid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use sulfurous acid in a sentence
If sulfurous acid is present, it will be oxidized to sulfuric acid and precipitated as barium sulfate by the barium chlorid.
Detection of the Common Food Adulterants | Edwin M. BruceIf sulfurous acid is present a deep blue color forms at once.
Detection of the Common Food Adulterants | Edwin M. BruceFree sulfurous acid is not largely used as a food preservative, though its salts are quite commonly employed.
Detection of the Common Food Adulterants | Edwin M. BruceIf a precipitate forms on the addition of barium chlorid the presence of sulfurous acid is indicated.
Detection of the Common Food Adulterants | Edwin M. Bruce
Scientific definitions for sulfurous acid
A colorless solution of sulfur dioxide in water, characterized by a suffocating sulfurous odor. It is used as a bleaching agent, preservative, and disinfectant. Chemical formula: H2SO3.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Browse