orthophosphoric acid

orthophosphoric acid

[awr-thoh-fos-fawr-ik, -for-, awr-]
noun Chemistry.
a colorless, crystalline solid, H 3 PO 4 , the tribasic acid of pentavalent phosphorus: used chiefly in fertilizers, as a source of phosphorus salts, and in soft drinks as an acidulant and flavoring agent.

Origin:
1870–75; ortho- + phosphoric acid

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World English Dictionary
orthophosphoric acid (ˌɔːθəʊfɒsˈfɒrɪk)
 
n
Also called: phosphoric acid a colourless soluble solid tribasic acid used in the manufacture of fertilizers and soaps. Formula: H3PO4

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

orthophosphoric acid or·tho·phos·phor·ic acid (ôr'thō-fŏs-fôr'ĭk)
n.
See phosphoric acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia

orthophosphoric acid

(H3PO4), the most important oxygen acid of phosphorus, used to make phosphate salts for fertilizers. It is also used in dental cements, in the preparation of albumin derivatives, and in the sugar and textile industries. It serves as an acidic, fruitlike flavouring in food products

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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