Druckschrift 
The London Dispensatory, containing : 1. the Elements of Pharmacy ; 2. the botanical Description, natural History, chemical Analysis, and medicinal Properties of the Substances of the Materia Medica ; 3. the pharmaceutical Preparations and Compositions of the Pharmacopoeias of the London, Edinburgh, and Dublin Colleges of Physicians ; the Whole forming a Practical Synopsis of Materia Medica, Pharmacy, and Therepeutics
Entstehung
Seite
663
URN (Seite)
  
Rechtsdrehung 90°Linksdrehung 90°
  
  
  
  
  
 
Einzelbild herunterladen
 

PART III.

Preparations of Ether.

663

maniacal and apoplectic cases; and as an alterative in cuta-neous eruptions. It is given in doses of n\ v. to ill x. but it isa very unmanageable remedy, producing sometimes the mostviolent effects.

T1NCTURA ZINGIBERIS. Lond. Dub. TincturaAmomi Zingiberis. Edin. Tincture of Ginger.

" Take of ginger root sliced, two ounces,- proof spirit, twopints. Macerate for fourteen days, (seven days, Dub. Edin.)and filter."

This tincture possesses all the pungency of the ginger, andis useful as a stimulant and carminative, in atonic gout, whenit attacks the stomach, in flatulent colic, and as a corrigent togriping purgatives.

MTHEREA.

Preparations of Ether.

The action of the strong acids on alcohol produces an orderof compounds, which possess both important chemical proper-ties, and medicinal virtues. These are named Ethers, andagree in certain general properties, but vary in some of theirqualities according as they are produced from different acids.They are all extremely volatile, and require to be preserved inclosely stopt phials. 1 The following are medicinally used..ETHER SULPHURICUS. Lond. Sulphuric Ether.*" Take of rectified spirit, sulphuric acid, of each, one poundand a half. Pour the spirit into a glass retort, and add theacid gradually to it, shaking it frequently, and taking care thatthe temperature of the mixture do not exceed 120°, until it becompleted. Then cautiously place the retort in a sand-bath,previously heated to 20CP, that the liquor may boil as quicklyas possible, and the ether pass into a tubulated receiver to whichanother receiver is adapted, which is to be cooled by ice orwater. Distil until a heavier fluid begins to pass over, which isseen in the bottom of the receiver below the ether. Pour onthe liquor which remains in the retort twelve fluid ounces moreof rectified spirit, and distil another portion of ether in a simi-lar manner."

1 The phial proposed by Dr. Dewar is the best For this purpose. It consists of astopt phial, having a circular rim round its shoulder, not rising quite so high as themouth of the bottle, and a glass cup with a heavy bottom, which when inverted over themouth of the phial into mercury, poured into the rim, hermetically closes it. Annahof Phil. vol. x. p. 20.

i Ether (F.) Schwefelatther (G.) Etere (7.)

u u 4

 
Seiten anSeiten aus
Text aus