The London manual of medical chemistry, comprising an interlinear verbal translation of the Pharmacopoeia, with extensive ... notes ... together with the treatment and tests of poisons, and ... the theory of pharmaceutical chemistry ... / By William Maugham.

  • Maugham, William.
Date:
1831
Catalogue details

Licence: Public Domain Mark

Credit: The London manual of medical chemistry, comprising an interlinear verbal translation of the Pharmacopoeia, with extensive ... notes ... together with the treatment and tests of poisons, and ... the theory of pharmaceutical chemistry ... / By William Maugham. Source: Wellcome Collection.

    194/604 (page 86)
    Dein, adjecta insuper iincia Nitratis exsiccatae Then^ having cast thereon an ounce of diied Nitrate Potassae, Acidam destillet iterum eodeni modo. ofPotashy let the Acid distil again in the same manner. Pondus specificum The specific gravity ad pondus specificum to the specific gravity ad [mille, to 1.000 \one thousand, Acidi nitrici est of nitric Acid is Aquae destillatae ut of distilled water as 1.500 quingentse (partes sunt) five hundred (parts are) ad mille (partes) ]. to one thousand (2)arts)~\, Grana ducenta duodecim Two hundred and twelve grains Subcarbonatis of the Subcarbonate ab granis centum by a hundred grains Sodae of Soda hiijus acidi. of this acid. C ry stall orum of the crystals saturantur are saturated Nitrate of potash consists of dry nitric acid and potash ; liquid sulphuric acid of dry sulphuric acid and water. The dry sulphuric acid unites with the potash of the nitrate forming bisulphate of potash, and the dry nitric acid combines, and is brought over by distillation, with the water of the sulphuric acid. Sulphuric acid requires only 1 atom of water to exist in the liquid state, while nitric acid requires 2 atoms of water to become liquid: the sulphuric acid is therefore added in excess, and, consequently, a hisul- phate remains in the retort. In the above formula the acid is ordered to- be re- distilled, nitrate of potash being previously added to it: the object is to remove any sulphuric acid that might be brought over in the first distillation. It is not, however, necessary to observe this direction as