A syllabus of a course of chemical lectures read at Guy's Hospital / [William Babington].

  • Babington, William, 1756-1833
Date:
1802
Catalogue details

Licence: Public Domain Mark

Credit: A syllabus of a course of chemical lectures read at Guy's Hospital / [William Babington]. Source: Wellcome Collection.

    145/162 (page 137)
    <*■ and of a compaft or llaty texture, Afphaltumy Jet, Coal. * ’ ’ > , The more liquid Bitumens by continued expofure to Air, convertible into the more confident, and all yielding fimilar produ&s in didillation. In the different kinds of Coal there exids more or lefs earthy admixture, and often Iron Pyrites. The bituminous bodies immifcible with Water and infoluble in Spirit of Wine. i • \:] t Of Amber. Nearly allied to the foregoing. Found for the mod part in irregular malfes more or lefs tranfparent, and of a brownifh or yellowifh colour.—Specific gravity from 1.055 to 1.000. Emits a peculiar odour on fri&ion and becomes eledric. Melts at 550 Farenh. Burns with a whitifh dame. In didillation yields Water, Empyreumatic Oil, (Oleum Succini P. L.) and a concrete Acidy {Sal Succini P. L.) Infoluble in Water and nearly fo in Spirit of Wine, alfo in all the acids, the Sulphuric Acid excepted, in the folutions of the Alkalies, and in