7、出,得到紫色溶液b, 取少量b,滴加盐酸,有 Cl 2产生。.由方案中溶液变红可知a中含有Fe3+离子,但该离子的产生不能判断一定是K2FeO4将Cl-氧化,还可能由4FeO42-+20H+=4Fe3+3O2T +10HO 产生(用方程式表示)。方案可证明K2FeO4氧化了 Cl-,用KOH溶液洗涤的目的是 排除C10 -的干扰_。根据K2FeO4的制备...
materials Article Phase Relations in a NaFeO2-SnO2 (0–50 mol.% SnO2) System and the Crystal Structure and Conductivity of Na0.8Fe0.8Sn0.2O2 Georgiy S. Shekhtman *, Elena A. Sherstobitova, Mariya S. Shchelkanova and Evgenia A. Ilyina Institute of High Temperature Electrochemistry, Ural...