29. Ferri Et Quininae Citras Solubilis. Soluble Iron And Quinine Citrate

Ferri Et Quininae Citras Solubilis. Soluble Iron And Quinine Citrate.

Source

Dissolve Ferric Citrate, 85; in distilled water, 160; by heating; add Quinine, 12; Citric Acid, 3; previously triturated in distilled water, 20; mix these solutions and stir with Ammonia Water, 50; evaporate to a syrupy consistency and dry on glass.

Characters

Thin, transparent scales, of a greenish, golden-yellow color, having a bitter, mildly ferruginous taste; deliquescent.

Dose, 2 to 10 gr.; .12 to .60 gm.

Preparation

Vinum Ferri Amarum

Bitter Wine of Iron. Soluble Iron and Quinine Citrate, 50; Tincture of Sweet Orange Peel, 150; Syrup, 300; White Wine to 1000.

Dose, 1 to 4 fl. dr.; 4. to 15. c.c.

30. Ferri Pyrophosphas Solubilis. Soluble Ferric Pyrophosphate

Ferri Pyrophosphas Solubilis. Soluble Ferric Pyrophosphate.

Source

By solution of Ferric Citrate, 50; Sodium Pyrophosphate, 50; in distilled water, 100; evaporation and drying on glass.

Characters

Thin, apple-green, transparent scales, odorless, having an acidulous, slightly saline taste, and a slightly acid reaction. Solubility. - Freely in water; insoluble in Alcohol.

Dose, 1 to 5 gr.; .06 to .30 gm.

31. Ferri Arsenas. Iron Arsenate

31. Ferri Arsenas. B. P. Not official. Iron Arsenate. 3Fe(FeO)AsO4+16H2O=1086.74. It consists of both ferrous and ferric arsenates, with some oxide.

Source

Mix hot solutions of Sodium Arsenate and Iron Sulphate, add Sodium Bicarbonate to neutralize the free Sulphuric Acid that is formed when Iron Arsenate is precipitated.

Characters

A greenish, amorphous powder, insoluble in water.

Impurities

Sulphates.

Dose, 1/6 to 1/2 gr.; .004 to .03 gm. as a pill.

32. Ferrum Dialysatum. Dialyzed Iron

Ferrum Dialysatum. Dialyzed Iron. (Not official.) Source. - By heating a solution of Ferric Chloride with Ammonia, Ferric

Hydrate being precipitated, this being redissolved by agitation, is placed in a dialyzer and suspended in water, which is renewed so long as it shows a trace of Hydrochloric Acid.

Composition

Its composition varies from Fe2C16, 12Fe2O3 to FejCl6, 95Fe2O3, and is a 10 per cent. solution of Ferric Oxychloride in water.

Characters

A reddish-brown liquid, free from astringent, styptic taste.

Dose, 10 to 30 m.; .60 to 2.00 c.c.

Incompatibles Of Iron Salts In General

All substances containing tannic or gallic acid form an intense black with ferric salts. Preparations of iron are therefore incompatible with all vegetable astringent solutions, and the only infusions with which they can be prescribed are infusions of quassia and of calumba. It is a common mistake to forget that because of its tannin, the tincture as well as the infusion of digitalis makes an inky mixture with iron preparations. Such a mixture may be clarified with a little diluted phosphoric acid, but after a few days a slight precipitate of ferric phosphate falls. Ferric salts render mucilage of acacia gelatinous.

Alkalies and their carbonates, lime water, calcium carbonate, magnesia and magnesium carbonate give green precipitates with ferrous, and brown with ferric salts.