hypophosphorousadj.
/hʌɪpə(ʊ)ˈfɒsfərəs//hɪpə(ʊ)ˈfɒsfərəs/ Chemistry.
In hypophosphorous acid, an oxygen-acid of phosphorus, PH3O2.
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phosphoric acid?1765
hypophosphorous acid1818
phosphatic acid1818
hypophosphoric acid1854
1818 W. Henry Elements Exper. Chem. (ed. 8) II. i. xv. 12 Hypo-phosphorous or Per-phosphorous Acid..a viscous fluid, strongly acid and uncrystallizable.
1841 W. T. Brande Man. Chem. 488 Hypophosphorous acid..was discovered by Dulong in 1816.
1877 H. E. Roscoe & C. Schorlemmer Treat. Chem. I. 487 On cooling the solution, the hypophosphorous acid is obtained in the form of a thick very acid liquid.
This entry has not yet been fully updated (first published 1899; most recently modified version published online September 2018).
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