500 Metallic Preparations. — Antimony. part in.

f

clown with the golden sulphur ; the base being the same in both,as stated by Trommsdorff.'

Qiialitics. — The precipitated sulphuret of antimony, as it iscalled, is an orange-coloured powder, slightly styptic to thetaste, inodorous, and insoluble in water. It readily catchesfire, and burns with a blue and greenish flame, exhaling theodour of sulphurous acid, and leaving the metal, after the com-bustion, in the form of a grayish wkite oxide.

Medical properties and uses. — This preparation of antimonyis diaphoretic and expectorant. It was formerly much em-ployed in asthma, and in catarrhal affections; but it is uncer-tain in its operation, and is not much employed in modernpractice; unless when combined with mercurials, when it formsa useful alterative in herpetic and other eruptions. The doseis from gr. j. to grs, iv. in a pill, twice a day.

Officinal preparation. Pilulce Hydrarvyri subimtriatis cotnp. L.

ANTIMONIUM TARTARIZATUM. Lond. Tarta-rized Antimony. z

" Take of powdered sulphuret of antimony, too ounces ; ni-trate of potash, one ounce ,• supertartrate of potash, two ounces;sulphuric acid (by weight), two ounces; distilled water, one pintand a half. Mix the acid with the water in a glass vessel, andheat the mixture in a sand-bath. When it is moderately warm,add by degrees the sulphur and the nitre previously mixedtogether, then strain, and boil until all the moisture is con-sumed. Wash the residue with distilled water, until it re-mains tasteless, and while it is yet moist mix with it the super-tartrate of potash, and throw the whole into a pint of distilledwater; finally boil the solution and set it aside to crystallize."

Tartras Antimonii ; olim, Tartarus Emeticus. Edin.Tartrate of Antimony, formerly Tartar Emetic.

" Take of sulphuret of antimony, and nitrate of potash,each, an equal weight; supertartrate of potash, a sufficient quan-tity. Triturate separately the sulphuret and the nitre, andhaving mixed them well together, throw them into a red-hotcrucible. When the deflagration is finished, separate the redmatter from the white crust, and rub it into a very fine pow-der, which must be washed with several effusions of warm wa-ter ; and afterwards dried.

" This powder is now to be rubbed together with an equalweight of supertartrate of potash, and the mixture boiled in aglass vessel, with four times its weight of distilled water for

« Annala dn Ch.im.vi, xxxiv. 132. The quantity of the sulphuretted hydrosulphuretis much increased, by adding to the sulphuret o f antimony a small portion of sulphur.

' Tartrate de potass* ainimonii {F.) Spiessglatu-weinstein (G.) Tartaro Antirao-niato (/.)