Synonym. - Morphia Muriatica.
Present name. - Morphia Hydrochlorate. C17H19No3,HCl, 3H1O.
This may be obtained from the operative chemists.
Characters and Tests. - In white flexible acicular prisms of a silky lustre, not changed by exposure to the air, and soluble in water and spirit. The aqueous solution gives a white curdy precipitate with Nitrate of Silver, and a white one with Potash, which is re-dissolved when an excess of the alkali is added. Moistened with strong Nitric Acid, it becomes orange-red, and with solution of Perchloride of Iron greenish-blue. Entirely destructible by heat, leaving no residue. 20 grains of the salt dissolved in half an ounce of warm water, with Ammonia added in the slightest possible excess, give on cooling a crystalline precipitate, which, when washed with a little cold water, and dried by exposure to the air, weighs 15.18 grains.
Reference to Horn. Proving. - A very short notice in Noack and Trinks.
Preparations. - Trituration. Solution in a mixture of 3 measures of distilled water with 1 of rectified spirit.