Elements of pharmacy, materia medica, and therapeutics. / By William Whitla.
- William Whitla
- Date:
- 1882
Licence: Public Domain Mark
Credit: Elements of pharmacy, materia medica, and therapeutics. / By William Whitla. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
505/544 page 489
![Kc)—Dissolves in pure Sulphuric Acid (H„SOJ, with ' a fcchle ycUdtvixh tint, and undergoes no further change of colour when gently warmed (absence of Saliciu, which would give by this process a dccj) red colour). jgg^g I (d]—It is pjitd. from its solution in Sulphuric Acid \ (white) hy Ammonia, and this white ppt. (Quiuia) re-dissolves on shaking with Ether, without the production of any crystal- line matter floating on the lower of the two strata into which the shaken fluid separates \ on rest (absence of Quinidia or Cinchonia). Santoninum (0,511,^03). ''(«)—In colourless, flat, rhombic prisms, feebly bitter. Scarcely soluble in cold water (absence of GumArabic), sjiaringly in boiling water, but abundantly in Chloroform and in boiling Rectified Spirit. Fusible and Sublimable. Tests—(b)—Sunlight renders it yellow. It is not dissolved by diluted Mineral Acids. I («)—Entirel}' destructible by a red heat, with free access of air (absence of mineral matter). (d)—Its solution in alcohol does not burn with a r/reen flame (ab.sence of boracic acid). Soda Caustica (NaHO). Na.C03 + Ca2H0 = 2NaH0 + CaCO, ^(fi)—Hard and greyish-white ; very alkaline and corrosive. (h)—It imparts a i/elltiw coluur to flame, and its solu- tion in water, acidulated by Nitric Acid Tests—<^ (HNO3) gives oidy a sc.uity n-hitepjd. with Nitrate of Silver (absence of Chloride of Sodium), and Chloride of Barium (BaCl.J, (absence of more th;ui a small (juantity oi' Sulphate of Soda). Soda Tartarata (NaKC,H,0,4H,0). Na .CO , + 2KHC,H,0,; - 2NaKC,H,0, + H,0 -1- CO, f[a)—In colourless, transparent prisms, or halves of I prisms, of the right rhomlncorder, generally Tfsth—J eight-sided, tasting like common salt. \ Entirely soluble in cold water. (//)—Heated with H.^SO, it chars, and leaves a resi- l due of Carbonates of Sodium and I'ol^assium.](https://iiif.wellcomecollection.org/image/b21507296_0505.jp2/full/800%2C/0/default.jpg)
