Contractions. - Plat. Pla.

Present name. - Platinum. Pt.

This should be obtained by precipitation from a dilute solution of Perchloride of Platinum by means of well-polished iron rods, upon which it is deposited as a spongy iron-grey mass, without lustre, soft, and light. To insure its purity, the Perchloride of Platinum, before it is decomposed, must be tested in the manner directed under , Platini Chloridum, and the precipitate boiled with Hydrochloric Acid, and afterwards well washed with distilled water and dried.

Preparation. - Trituration.

Reference to Horn. Proving. - Chr. Kr., v.

Proper forms for dispensing. - lx to 3, Trituration only. 4, dilute Tincture only. 5 and upwards, Tincture, Pilules, or Globules.