. A treatise on pharmacy for students and pharmacists. as acids or ethers, are presentin the drug, and, passing over with the steam, remain dissolved in thecondensed water. In distilling aromatic waters over a naked fire,care should be taken to prevent the material from being scorched,which can be obviated by placing the drug either upon a diaphragmor in a perforated vessel or wire cage, and then suspending this inthe water. A peculiar odor is observed in some waters immediatelyafter they have been distilled and condensed in tin vessels, but not THE OFFICIAL WATERS. 209 when glass vessels have
. A treatise on pharmacy for students and pharmacists. as acids or ethers, are presentin the drug, and, passing over with the steam, remain dissolved in thecondensed water. In distilling aromatic waters over a naked fire,care should be taken to prevent the material from being scorched,which can be obviated by placing the drug either upon a diaphragmor in a perforated vessel or wire cage, and then suspending this inthe water. A peculiar odor is observed in some waters immediatelyafter they have been distilled and condensed in tin vessels, but not THE OFFICIAL WATERS. 209 when glass vessels have been used; if the waters be exposed to theair in loosely stoppered vessels, for a few days, this still-odor disap-pears and the natural odor of the water becomes apparent. The stronger orange flower and rose waters are obtained, on a largescale, often as by-products in the distillation of the respective oils ;in commerce they are distinguished as of triple or quadruple order to produce a saturated solution of the oil, recourse is had to. The Curran Water is a tin-lined copper boiler, c is a galvanized jacket for supporting the boiler over the gasburners, and is attachable at b, b ; it is also intended to act as a flue to utilize tbe heat from thegas burners on the sides of the boiler, n is a screw cover removable for rilling or cleansing theboiler, f is the vapor pipe from the boiler to the condensing coil, p, in the galvanized iron con-densing tank, e, which is provided with an inlet for cold water at t, and an outlet for the warmwater at I. At g is a union for connecting the vapor pipe with the condensing coil, s is theoutlet for the condensed water, and x is the receiving vessel, j is a perforated ring resting onthe jacket, and k are vent holes in the ring, through which the exhausted gases pass off. o isa removable cover for cleansing out the condensing tank, r is a faucet for drawing off thewater from the condensing tank. L, L, l are the gas burners, a
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Keywords: ., bookcentury1800, bookdecade189, booksubjectpharmacy, bookyear1895
