Sodium selenite10102-18-8100 % similar Sodium selenite (Na2SeO3) pentahydrate26970-82-180 % similar Zinc selenite (ZnSeO3)13597-46-160 % similar Barium selenite (BaSeO3)13718-59-760 % similar Silver selenite7784-05-660 % similar Cupric selenite dihydrate15168-20-450 % similar Sodium hydrogen selenite7782-82-342 % similar