Volume 2

Elements of chemistry / By M.I.A. Chaptal ; translated from the French [by W. Nicholson] In three volumes.

  • Chaptal, Jean-Antoine-Claude, 1756-1832.
Date:
1800
Catalogue details

Licence: Public Domain Mark

Credit: Elements of chemistry / By M.I.A. Chaptal ; translated from the French [by W. Nicholson] In three volumes. Source: Wellcome Collection.

    506/512 (page 488)
    It difengages the carbonic acid from it5 combinations, and unites with the alkalis. It even partly decompofes the fulphate of pot-afh, by the afliftance of a ftrong heat. It diffolves feveral metals, and affumes a blue colour, in proportion as it yields its oxigene to them. r « - ♦ > The combinations of this acid with the al- kalis are little known. Schecle however has obferved, that fixed alkali renders this acid earth more foluble in water; that the alkali ■H prevented the acid from rifing; that the mo- lybdate of pot-afh is precipitated by cooling in fmall granulated cryftals. The oxigene adheres but (lightly to the mo. i ■ lybdic bafq; for this acid boiled with the fcmi- metals does not fail to affuine a blue colour. Hydrogenous gas pa(fed through it is fuf- ficient to produce the blue colour. Molybdena, as Mr. Pelletier has obferved, has a great refemblance in its chemical refults to antimony; fince, like that femi-metal, it is capable of affording by calcination an argen- tine oxide, capable of vitrification. END O? THE SECOND VOLUME. « » » ‘ R. Noble, Printer, Old Bailey.