| 单词 | glacial sulphuric acid |
| 释义 | > as lemmasglacial sulphuric acid b. glacial acetic acid, pure acetic acid in crystals; glacial phosphoric acid, metaphosphoric acid (HPO3); glacial sulphuric acid, †glacial oil of vitriol, pure sulphuric acid in crystals. ΚΠ 1786 H. Cavendish in Philos. Trans. (Royal Soc.) 76 268 The oil of vitriol prepared from green vitriol, has sometimes been obtained in such a state as to remain constantly congealed..whence it acquired its name of glacial. 1800 tr. E. J. B. Bouillon-Lagrange Man. Course Chem. II. 42 Glacial sulphuric acid. 1821 W. T. Brande Man. Chem. (ed. 2) I. iv. 406 When dried and fused in a crucible, a transparent glass is obtained, commonly called glacial phosphoric acid. 1843 J. Pereira Treat. Food & Diet 149 Glacial or Crystallisable Acetic Acid, the strongest procurable, contains one equivalent of water. 1879 Cassell's Techn. Educator (new ed.) IV. 357/2 The acetic acid..usually employed in photography is what is termed glacial, and should become solid at about 40°. < as lemmas |
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