51Թ

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orthophosphorous acid

[awr-thuh-fos-fer-uhs, awr-thoh-fos-fawr-uhs, -fohr-]

noun

Chemistry.

  1. a white to yellowish, crystalline, hygroscopic, water-soluble solid, H 3 PO 3 , used chiefly in the synthesis of phosphites.

orthophosphorous acid

/ ˌɔːθəʊˈɒəə /

noun

  1. Also called: phosphorous acid.a white or yellowish hygroscopic crystalline dibasic acid. Formula: H 3 PO 3

“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
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51Թ History and Origins

Origin of orthophosphorous acid1

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orthophosphoric acidorthophthalic acid

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