. An introduction to practical pharmacy [microform] : designed as a textbook for the student and as a guide to the physician and pharmaceutist : with many formulas and prescriptions . mployed, iscalled sublimation. In Galenical pharmacy, this is applied to theseparation of benzoic acid; in chemistry, to the manufacture ofcalomel, corrosive sublimate, &c. When this is accomplished inclose vessels by a degree of heat which decomposes the substancesacted on, it is called destructive distillation, as in the manufacture ofacetic acid. Fig. 163. Apparatus for Distillation. Retorts are usually made o
. An introduction to practical pharmacy [microform] : designed as a textbook for the student and as a guide to the physician and pharmaceutist : with many formulas and prescriptions . mployed, iscalled sublimation. In Galenical pharmacy, this is applied to theseparation of benzoic acid; in chemistry, to the manufacture ofcalomel, corrosive sublimate, &c. When this is accomplished inclose vessels by a degree of heat which decomposes the substancesacted on, it is called destructive distillation, as in the manufacture ofacetic acid. Fig. 163. Apparatus for Distillation. Retorts are usually made of glass; they are adapted to makedistillations sometimes without, and sometimes with, condensingarrangements attached. Theplain retort, though much useda,broad, is almost supersededwith us by the tubulated, whichis represented in the accom-panying figure, Fig. 168. For-merly, the retort was nearlyalways connected with a re-ceiver, which is a glass globewith a wide mouth and neck,into which the beak of theretort is inserted, either looselyor by the aid of a cork, or as in Fig. 164, with the use of anadapter. The retort here represented is of the kind called plain; Fig. Tubulated retort.
Size: 2117px × 1180px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, booksubjectpharmacy, bookyear185
