Barium Selenite, BaSeO3, is obtained by precipitation from solutions of barium nitrate and sodium selenite. Stable, microscopic, prismatic crystals are formed, containing 1 molecule of water, BaSeO3.H2O.
An acid salt, BaSe2O5, is obtained by evaporating a solution of barium carbonate in excess of selenious acid. It is only slightly soluble. |