an oxyacid containing pentavalent phosphorus; spec. orthophosphoric acid, H3PO4; (also more generally) phosphorus pentoxide (cf. phosphoric anhydride…
| 单词 | θ71261 |
| 释义 | the world > matter > chemistry > chemical substances > acids > [noun] > acids-named > containing phosphorous (4) phosphoric acid?1765 an oxyacid containing pentavalent phosphorus; spec. orthophosphoric acid, H3PO4; (also more generally) phosphorus pentoxide (cf. phosphoric anhydride… hypophosphorous acid1818 In hypophosphorous acid, an oxygen-acid of phosphorus, PH3O2. phosphatic acid1818 (a) Chemistry (originally) a mixture of phosphoric and phosphorous acids, formerly supposed to be a distinct acid; (now) any acid which gives… hypophosphoric acid1854 In hypophosphoric acid, P2O2(OH)4, a tetrabasic acid, obtained as an odourless liquid. |
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