hypophosphorous, a. Chem.
(hɪpəʊ-, haɪpəʊˈfɒsfərəs)
[f. hypo- 5 + phosphorous. So F. hypophosphoreux.]
In hypophosphorous acid, an oxygen-acid of phosphorus, PH3O2.
| 1818 Henry Elem. Chem. (ed. 8) II. 12 Hypo-phosphorous or Per-phosphorous Acid..a viscous fluid, strongly acid and uncrystallizable. 1841 Brande Chem. 488 Hypophosphorous acid..was discovered by Dulong in 1816. 1877 Roscoe & Schorlemmer Treat. Chem. I. 487 On cooling the solution, the hypophosphorous acid is obtained in the form of a thick very acid liquid. |