Volltext Seite (XML)
$e£. 229. INFLAMMABLE SUBSTANCES. 44.7 8. Does not render lime-water turbid by it- felf; but being inflamed over it, the water is troubled, and depofits fame of the chalk it contains. 9. Has no acid qualities. 10. Does not calcine metals; on the contrary, Dr. Prieftley has revived fome of their calces by the rays of the fun, through a burning lens, in a glafs veflfel filled with this air, over a bafon of mercury. 11. It accelerates vegetation. 12. It hinders putrefaftion, though in a de gree very inferior to fixed air. 13. It is abforbed by charcoal [e]. Editor, chiefly from Leonhardi, Kirwan, Sec. SECT. [V] Inflammable air admits confiderable varieties, according to the nature of the fubftances from which it is produced*, and often gives different refiduums upon combuflion, fome of which are of the acid kind. If it is produced from charcoal, it yields aerial acid, or flxt air 1 from folutions of metallic fubftances in the vitriolic, nitrous, or marine acids, it yields thefe refpedive acids, as Mr. Lavoifier atferts. ./Ether, converted into vapour in a vacuum, gives a per manent elaftic vapour, which is inflammable. The atmofphere, which floats round the Fraxinella (the plant called diet a me blanc, which grows in the woods of Languedoc, Provence, Italy, Ac.) is inflamable from the admixture of its vapours, which feem to be of the nature of an eflential oil; fo that on ap proaching the flame of a candle under this plant, in hot wea ther, it takes fire in an inftant; although the eflential oil, ex- traded from this plant by diftillation, is not inflamable, on account of the watery particles mixed with it, as Mr. Bomare. •aflerts. Mr. Scheele is of opinion, that every inflammable air is coropofed of a viry fubtile oil. This coincides with the idea entertained
