| 单词 | fluor acid air |
| 释义 | > as lemmasfluor acid air fluor acid air n. Chemistry (now historical) a colourless gas produced by Priestley in experiments with fluorspar, probably mainly silicon tetrafluoride (SiF4) resulting from the reaction of hydrofluoric acid with glass. ΚΠ 1775 J. Priestley Exper. & Observ. Air II. 197 It is sufficiently intitled to a peculiar appellation, viz. that of the Fluor acid air. 1794 R. J. Sulivan View of Nature I. 230 Fluor acid air, or sparry air. 1878 H. E. Roscoe & C. Schorlemmer Treat. Chem. (new ed.) I. 16 Priestley..likewise collected many gases for the first time over mercury, thus ammoniacal gas (alkaline air), hydrochloric acid gas (marine acid air), sulphurous acid gas (vitriolic acid air), and silicon tetrafluoride (fluor acid air). 2004 R. E. Schofield Enlightened Joseph Priestley ix. 187 Book 6 dealt with the various airs that were readily absorbed by water: marine acid air, vitriolic acid air, fluor acid air, and alkaline air. < as lemmas |
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