Synonym. - Chininum Arsenicum.

Present name. - Triquinia Arseniate (C20H14N2O2)3,2 H3AsO4, 2H10.

This may be prepared by directly combining pure Quinine and Arsenic Acid.

Characters and Tests. - White silky needles, soluble in water and alcohol. The aqueous solution gives no precipitate with Chloride of Barium, but with Nitrate of Silver a brick-red precipitate is produced. When treated first with solution of Chlorine and afterwards with Ammonia, it becomes of a splendid emerald green colour.

It has not been proved.

Preparations. - Trituration. Solution in 20 O.P. spirit.