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phosphoric acid

American  

noun

Chemistry.
  1. any of three acids, orthophosphoric acid, H 3 PO 4 , metaphosphoric acid, HPO 3 , or pyrophosphoric acid, H 4 P 2 O 7 , derived from phosphorus pentoxide, P 2 O 5 , and various amounts of water.


phosphoric acid British  

noun

  1. Systematic name: phosphoric(V) acid.  Also called: orthophosphoric acid.  a colourless solid tribasic acid used in the manufacture of fertilizers and soap. Formula: H 3 PO 4

  2. any oxyacid of phosphorus produced by reaction between phosphorus pentoxide and water See also metaphosphoric acid pyrophosphoric acid hypophosphoric acid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

phosphoric acid Scientific  
/ fŏs-fôrĭk /
  1. A clear liquid, or a solid that forms colorless, rhombus-shaped crystals, that is used in fertilizers, detergents, food flavoring, and pharmaceuticals. Chemical formula: H 3 PO 4 .


Etymology

Origin of phosphoric acid

First recorded in 1785–95

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The tanker, which had been carrying a cargo of phosphoric acid, was identified as the Central Park by the vessel's company.

From Reuters

“The Turkish-captained vessel has a multinational crew consisting of a crew of Russian, Vietnamese, Bulgarian, Indian, Georgian, and Filipino nationals. The vessel is carrying a full cargo of phosphoric acid.”

From Washington Times

“The Turkish-captained vessel has a multinational crew consisting of a crew of Russian, Vietnamese, Bulgarian, Indian, Georgian and Filipino nationals. The vessel is carrying a full cargo of phosphoric acid.”

From Seattle Times

But gypsum stacks and wastewater from phosphoric acid production are exempt from the EPA's hazardous waste standards, which establish base federal criteria for managing waste from "cradle to grave."

From Salon

He cried when doctors told him he would have to give up his beloved Coca-Cola because of the phosphoric acid.

From Los Angeles Times