单词 | sulphuric acid |
释义 | > as lemmassulphuric acid a. Chem. sulphuric acid, a highly corrosive oily fluid (hydrogen sulphate, H2SO4), also called oil of vitriol, in its pure state a dense liquid without colour or smell; prepared on a large scale for use in arts and trades by burning iron pyrites or sulphur and leading the fumes, together with oxides of nitrogen and air, over into chambers into which jets of steam are forced.Formerly used also for sulphur trioxide, sulphuric acid gas, SO3; also called anhydrous sulphuric acid. ΚΠ 1789 R. Kerr tr. Lavoisier Elements Chem. 355 Fluid substances, such as sulphuric and nitric acids. 1791 W. Hamilton tr. C.-L. Berthollet Art of Dyeing I. i. i. i. 5 The solution of indigo in the sulphuric (vitriolic) acid. 1794 G. Pearson tr. Table Chem. Nomencl. 3 These three species are named the Sulphureous, the Sulphuric, and the Oxygenated Sulphuric Acids. 1815 J. Smith Panorama Sci. & Art II. 420 Sulphuric acid is the union of oxygen and sulphur. 1866 H. E. Roscoe Lessons Elem. Chem. xix. 169 Salt-cake process. This process consists in the decomposition of salt by means of sulphuric acid. < as lemmas |
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