mo

FERRUM— IRON.

Cadet de Gassicourt ; Swediaur ;Pa. SyPH.

R. Iron Filings, one part.

Hydrochloric Acid (20 degrees),

four parts.Nitric Acid (28 degrees), one part.Pour the nitric acid upon the metal, andlet it act upon it for several minutes ; thenadd gradually the other acid ; and when thesolution is effected and the liquor has be-come cold, add

Distilled Water, two parts.

Filter the liquor, and evaporate it to dry-ness in a porcelaine capsule ; leave the re-siduum in a cellar till it has ceased to at-tract humidity ; then decant and filter theliquid, and enclose it in a bottle with anequal weight of well rectified sulphuricaether. (Brugnatelli)

R. Dilute Hydrochloric Acid, four ounces.

---------- Nitric Acid, one ounce.

Iron Filings, a sufficient quantity

to saturate the acids. Evaporate the solu-tion to dryness, and dissolve the residuumin a weight of distilled water equal to itsown. Then

R. Of this solution, one ounce.

Sulphuric ./Ether, six ounces.

Shake them well together in a bottle ;then separate the supernatant aether, andadd to it

Alcohol (0.830), four ounces.

Expose the liquor to the rays of the sun,till it becomes perfectly colourless. (Ant.)

Batav. ; Bavak. ; Hann. ; Pol. ;

Borus. ; Bories ; and Cadet de Gassi-coiirt, direct iron to be dissolved in amixture of hydrochloric acid with one half(Bavar.), one fourth (Batav.; Bcrus. ;Bories; Cadet de Gassicourt), or onethird (Hann.; Pol.), of nitric acid; thethe solution to be evaporated to dryness,the residuum to be suffered to deliquescein a cellar, the liquor to be mixed withtwice its weight of sulphuric rcther, themixture to be shaken till, after it hasbeen at rest, the aether shall exhibit a gold-en-yellow colour: this to be then decanted,and twice its weight of highly rectified al-cohol added to it : the mixture to be finallyagitated in a flask stopped with emery.

R. Iron Filings, any quantity.

Hydrochloric Acid, a sufficient quantityto dissolve the metal : filter the solution,evaporate it to dryness, and sublime the re-siduum : leave the chloruret thus obtainedto deliquesce. Mix one ounce of the deli-quesced salt with two ounces of sulphuricaether, shake well the mixture, decant theimpregnated œther, add to it four ouncesof alcohol, and finally leave the whole ex-

posed to the sun till it becomes colourless.(Lipp. ; Wirtem.)

Ph. Syph. describes the same process,omitting the sublimation of the iron dis-solved by the acid, and directing only thedry proto-hydrochlorate obtained to be al-lowed to deliquesce.R. Liquid Trito-hydrochlorate of Iron,

one ounce.Sulphuric ¿Ether, two ounces.

Digest for a quarter of an hour, and addto the decanted liquor

Concentrated Alcohol,

one ounce and a half.Mix. (Swediaur)

Belg. requires one part of the liquid salt,four parts of œther, and eight of alcohol. —Ph. Syph. — an equal part each, of the li-quid salt and of sulphuric œther, withoutalcohol.

A preparation which Van Mons desig-nates under the title of Tinctura hydragoyahas some affinity to this, and ought to beplaced here :R. Hydrochlorate of Iron calcined to

whiteness, one part.

Sprinkle it with water, and when themass shall have become red, add to it

Hydrochloric Acid, a sufficient quantityto dissolve an excess of iron : filter the li-quor, and evaporate it to the consistence ofvery thick extract ; macerate this first in

Hydrochloric yEther, two parts.

Then in

Alcohol, ten parts.

Filter the liquor.

Bestucheff's tincture was celebrated solong as the composition of it remained un-known, and no longer. Catherine II. pur-chased the secret of it for three thousandroubles, and Klaproth corrected the ridi-culous formula to make it accord with theprinciples of chemistry.

It has been extolled in asthenic and spas-medic diseases. — Dose, from twenty tothirty drops, in a watery vehicle ; but fromfive to ten are sufficient of the œtherealtincture when prepared without alcohol.

ferruginous potion.

Mixtura férrea. (Cadet de Gassicourt;Van Mons)

R. Crystallized Proto-hydrochlorate

of Iron, one dram.

Water of Mentha Crispa, eight ounces.

Cinnamon Water, 1 c ,

c . , c ' J- of each, one ounce.

Simple Syrup, J

Mix.

It is recommended in ha?matemesis. —

Dose, half a spoonful or one spoonful, every

hour. (Van Mons)