ARSEXUM Arsenum

(ar-se’-mini). As = 75; quantivalence ill, v. A brittle, crystalline metal, of a steel-gray color, tarnishing on exposure to the air. Sp. gr. 5.73. It sublimes at 1800 C., and gives off a garlicky odor. It forms two oxids: arsenous oxid, As003, and arsenic oxid, As205. The sulphids are used as pigments in the arts, rarely in medicine. Scheele’s green is copper arsenite; Schweinfurth and Paris-green likewise contain arsenic. Arsenic is also an ingredient of certain poisons used against rodents and insects. In medicine, arsenic is used as an alterative in anemias, chronic malaria, asthma, phthisis pul monal is, as a gastric sedative, and in chorea. Arsenous Acid, white arsenic, “ratsbane,” As.,03. Dose gr. ch073.xhtml j 80