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phosphoric acid phos·phor·ic acid (fŏs-fôr'ĭk)
A clear colorless liquid used in pharmaceuticals. Also called 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