phosphorous acid


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Related to phosphorous acid: hypophosphorous acid, metaphosphoric acid

phosphorous acid

n.
A white or yellowish hygroscopic crystalline solid, H3PO3, used as a reducing agent and to produce phosphite salts.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

phosphorous acid

n
1. (Elements & Compounds) Also called: orthophosphorous acid a white or yellowish hygroscopic crystalline dibasic acid. Formula: H3PO3. Systematic name: phosphoric acid
2. (Elements & Compounds) any oxyacid of phosphorus containing less oxygen than the corresponding phosphoric acid
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

phospho′rous ac′id


n.
a colorless, crystalline, water-soluble acid of phosphorus, H3PO3, from which phosphites are derived.
[1785–95]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phosphorous acid - a clear or yellow monobasic acid (H3PO2)
oxyacid, oxygen acid - any acid that contains oxygen
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References in periodicals archive ?
Phosphorous acid, although mainly used as fungicide, could possibly have some positive effect by stimulating the plant natural defense system and overall health (Smillie et al.
The nickel sulfamate electrolytes consisting of 90 g/L nickel ion, 40 g/L boric acid, 3 g/L nickel chloride, 1 ml/L wetting agent, and various (0~40 g/L) phosphorous acid concentrations for preparing different electrodes were employed, as listed in Table 1.
Abstract Ni-P deposits with a phosphorous content of up to 20% (wt) were obtained on AA6061 substrates by direct current electrodeposition technique from a solution containing nickel sulfate, nickel chloride, phosphorous acid, phosphoric acid, and a wetting agent (sodium lauryl sulfate).
The 10,000 tonnes of phosphorous acid being transported by the ECE contained dissolved cadmium "a metal which is toxic for all links in the marine food chain, particularly planckton and shell fish", explained Robin des Bois.