What is "hepar antimonii"

Hepar \He"par\, n. [L. hepar, hepatis, the liver, Gr. ?.]

1. (Old Chem.) Liver of sulphur; a substance of a liver-brown color, sometimes used in medicine. It is formed by fusing sulphur with carbonates of the alkalies (esp. potassium), and consists essentially of alkaline sulphides. Called also hepar sulphuris.

2. Any substance resembling hepar proper, in appearance; specifically, in homeopathy, calcium sulphide, called also hepar sulphuris calcareum (?).

   Hepar antimonii(Old Chem.), a substance, of a liver-brown color, obtained by fusing together antimony sulphide with alkaline sulphides, and consisting of sulphantimonites of the alkalies; -- called also liver of antimony.

n. (context chemistry obsolete English) A substance of a liver-brown colour obtained by fusing together antimony sulphide with alkaline sulphides, and consisting of sulphantimonites of the alkalis; liver of antimony.