Examinations in anatomy, physiology, practice of physic, surgery, materia medica, chemistry and pharmacy : for the use of students / by Robert Hooper.

  • Hooper, Robert, 1773-1835.
Date:
1814
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Licence: Public Domain Mark

Credit: Examinations in anatomy, physiology, practice of physic, surgery, materia medica, chemistry and pharmacy : for the use of students / by Robert Hooper. 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.

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    loS Lined with suljdinr, fonning an ore called galena; combiucj with nuiii '.tic and carbonic acids. It is found in the state of carbonate, phosphate, a^^euiate, arsenic phosphate, molybdate, and sulphat. 197. Q. What is plumbago B A. I’lumbago is a carburet of iron, or iron conibincd wilb carbon, in its iirst degree of oxidisement las. Q. What are the compounds of lead admitted into the new London Plmmiacojiaia.’ A. Liquor acetatls plumbi; supcr-acctas plumbi, and lu^or acet.atis plumbi diluLus. 109. Q. How is the supcr-acetatc of lead made ? A. It is made by boiling the carbonated oxide of lead in acetie acid, which displaces the carbonic acid and combines with the •xide of lead ; the solution is to l>e filtered, evapoiuted to a cer- tain extent, and set aside to crystallize. SOO. Q. How is the liquor acetatis plumbi made ? A. By boiling acetic acid and vitrified oxide of lead together. In a certain extent; then setting the solution by, that the fecu- lencics may subside. ^ 201. Q. What is the theory of this process? A. The oxide of lead combines with the acetic acid, and • sv.b-acetate of lead is formed. 202. Q. How is the ccrusse of commerce prepared? A. Small sheets of lead arc rolled up in a spiral form; these are placed peq)cndicularly on a support, over a vessel con- taining vinegar; several of these vessels covered are placed to- gether, and surrounded with dung, the heat of whicli raises the vinegar in vapour, which converts the surface of the lead into a white oxide, or rathei' a carbonate; at length the whole of the