Part 32

DOSE.--Horses, 1 to 2 dr.; cattle, 2 to 4 dr.; sheep and pigs, 20 to 30 gr.; dogs, 1 to 5 gr.

FERRI SULPHAS--FERROUS SULPHATE--COPPERAS--GREEN VITRIOL

DERIVATION.--Iron wire is dissolved by boiling in dilute sulphuric acid.

PROPERTIES.--Large, pale bluish-green, monoclinic prisms, without odor and having a saline styptic taste; efflorescent in dry air. On exposure to moist air the crystals rapidly absorb oxygen and become coated with brownish-yellow, basic ferric sulphate; soluble in water, insoluble in alcohol.

DOSE.--Same as reduced iron.

FERRI SULPHAS EXSICCATUS--DRIED FERROUS SULPHATE

DERIVATION.--Allow ferrous sulphate, 100 parts, to effloresce at a temperature of 104° F., then heat on a water bath until the product weighs 65.

PROPERTIES.--A greyish-white powder, slowly but completely soluble in water, without odor, and having a saline styptic taste.

DOSE.--Same as reduced iron.

FERRI CARBONAS SACCHARATUS--SACCHARATED FERROUS CARBONATE

DERIVATION.--Ferrous sulphate, 50; sodium bicarbonate, 35; sugar and distilled water. Made by solution, precipitation and washing.

PROPERTIES.--Greenish-brown powder, without odor; sweetish taste; becomes oxidized on exposure to the air.

DOSE.--Horses, 2 to 4 dr.; cattle, ¹⁄₂ to 1 oz.; sheep and pigs, ¹⁄₂ to 1 dr.; dogs, 2 to 10 gr.

SYRUPUS FERRI IODIDI--SYRUP OF FERROUS IODIDE

Contains five per cent, by weight, of ferrous iodide.

PROPERTIES.--Transparent, pale green liquid; sweet, ferruginous taste.

DOSE.--Horses, ¹⁄₂ to 1 oz.; cattle, 1 to 2 oz.; sheep and pigs, 1 to 2 dr.; dogs, 5 to 30 m. Given when you want the combined action of iron and iodine.

ACTION.--Tonic, alterative, diuretic and emmenagogue.

FERRI CHLORIDUM--FERRIC CHLORIDE

Ferric chloride should contain not less than 22 per cent of metallic iron in the form of chloride.

PROPERTIES.--It is in orange-yellow, crystalline pieces, odorless or having a faint odor of hydrochloric acid and a strong styptic taste; deliquescent; soluble in water and alcohol; not used internally.

Used almost exclusively in the form of tincture or liquor, and in reference to its effect and application I refer you to Tincture Ferri Chloridi and Liquor Ferri Chloridi.

LIQUOR FERRI CHLORIDE--SOLUTION OF FERRI CHLORIDE

DERIVATION.--Dissolve iron wire, 125, in hydrochloric acid, 680, nitric acid and water to make 1000.

PROPERTIES.--A reddish-brown liquid, having a faint odor of hydrochloric acid, an acid, strongly styptic taste.

DOSE.--Horses and cattle, 2 to 4 dr.; sheep and pigs, 10 to 20 m.; dogs, 2 to 10 m. All liquid preparations of iron should be well diluted with water or oil.

TINCTURA FERRI CHLORIDI--TINCTURE OF FERRIC CHLORIDE

Composed of ferric chloride, 350 parts; alcohol to make 1000.