Zinc selenite (ZnSeO3)13597-46-1100 % similar Sodium selenite10102-18-860 % similar Barium selenite (BaSeO3)13718-59-760 % similar Silver selenite7784-05-660 % similar Cupric selenite dihydrate15168-20-450 % similar Sodium selenite (Na2SeO3) pentahydrate26970-82-150 % similar