He hygroscopic. He mea maʻalahi ke hoʻopau ʻia i ka hoʻopili ʻana me nā oxides a he hopena corrosive. He ʻakika ka hoʻonā wai a hiki ʻole ke hoʻoheheʻe ʻia i loko o ka waiʻona. He hygroscopic. He mea maʻalahi ke hoʻopau ʻia i ka hoʻopili ʻana me nā oxides a he hopena corrosive. Ke ʻoi aku ka kiʻekiʻe ma mua o 100 ℃, e hoʻohua mai ka dehydration i ka anhydrous. Hiki ke hoʻoheheʻe ʻia i ka wai, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka waiʻona, a no ka ʻōnaehana kristal monoclinic. Pau ka wai ma 100°C.