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Pronunciation: or'tho-as'id

Definition: An acid in which the number of hydroxyl groups equals the valence of the acid-forming element, C(OH)4, orthocarbonic acid. When no such acid is present, the one that most nearly approaches this condition is sometimes called an orthoacid, OP(OH)3, orthophosphoric acid.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.