acetic anhydride

acetic anhydride

noun Chemistry.
a colorless, pungent liquid, C4H6O3, the anhydride of acetic acid: used chiefly as a reagent and in the production of plastics, film, and fabrics derived from cellulose.

Origin:
1875–80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Acetic anhydride is always a great word to know.
So is scrub. Does it mean:
to remove impurities from a gas by chemical means, as sulfur dioxide from smokestack gas or carbon dioxide from exhaled air in life-support packs
a purplish-red, water-soluble powder, C20H11N2O10Na3, an azo dye used chiefly to color pharmaceuticals, food, and garments
Collins
World English Dictionary
acetic anhydride
 
n
a colourless pungent liquid used in the manufacture of cellulose and vinyl acetates for synthetic fabrics. Formula: (CH3CO)2O

Collins English Dictionary - Complete & Unabridged 10th Edition
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