On urine, urinary deposits, and calculi: their microscopical and chemical examination, including the chemical and microscopical apparatus required, and tables for the practical examination of the urine in health and disease; the anatomy and physiology of the kidney, with upwards of sixty original analyses of the urine in disease, and general remarks on the treatment of certain urinary diseases / by Lionel S. Beale.
- Lionel Smith Beale
- Date:
- 1864
Licence: Public Domain Mark
Credit: On urine, urinary deposits, and calculi: their microscopical and chemical examination, including the chemical and microscopical apparatus required, and tables for the practical examination of the urine in health and disease; the anatomy and physiology of the kidney, with upwards of sixty original analyses of the urine in disease, and general remarks on the treatment of certain urinary diseases / by Lionel S. Beale. Source: Wellcome Collection.
Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.
490/520 (page 416)
![a. Phosphoric Acid of the alhaline phosphates pre- cipitated as ammoniaco-inagnesian or triple phosphate. To the second portion add a little of a solution of muriate of ammonia NH4CI, ammonia iNHg, and sulphate of magnesia MgOjSOg. A precipitate of phosphate of ammonia and mag- nesia will take place, 2MgO,NH40,P05. This is insoluble in ammoniacal salts (§ 164). h. Phosphoric Acid of the alkaline phosphate pre- cipitated as phosphate of lime. To the third portion of the clear solution add a little of a solution of ehloride of calcium CaCl, and ammonia NH3. Phosphate of lime gCaOjHOjPOs is precipated. Allow the two last precipitates to snbsirle, and then remove a little with the pipette and subject them to microscopical examination. Phosphate of lime is amorphous, hut the ammoniaco-magnesian phosphate is crystalline (§ 166). C Mustrations of Urinary De- posits, FUte IX., Figs. 1, 2; XXL, Fig. 4.) . 22. Potash, Soda.—Return to the examination of the solution obtained in No. 20, in which the presence of potash KG and soda NaO is to be demonstrated. Add it to an excess of ammonia NH3, and carbonate of ammonia 2]S'HiO,3C02, in order to precipitate the excess of baryta BaO. Filter. Evaporate the solution to dryness and gently ignite the residue in a platinum capsule. Dissolve what remains in water, and add a few drops of solution of bichloride of platinum PtClg. Evaporate the mixture to dryness over the water bath (p. 128). The dry residue is to be treated with successive portions of alcohol. Potassio-chloride of platinum KCljPtCls remains undissolved (p. 128). The alcoholic solution is to be concentrated that crystals may form, sodio-chloride of platinum NaCl,PtCl2. Examine both the crystalline de})Osits in the microscope under the influence of polarised light. The crystals of potassio-chloride of platinum are octohedral and do noi polarise, while the crystals of sodio-chloride of platinum are aeicular, and do polarise. EAUTHY SALTS. 23. Phosphate of Lime, Phosphate of Ammonia and Mag- nesia.—Return to the examination of that portion of the saline residue insoluble in water (No. 18). Add a few drops of nitric acid NO5 to the residue, and notice if effervescence takes place, carbonate of lime CaO, CO2. Dilute the solution and filter. Reserve any insoluble matter for further operations (No. 24). a. To one portion of the clear solution add excess of](https://iiif.wellcomecollection.org/image/b23982998_0490.jp2/full/800%2C/0/default.jpg)