ERBIUM PERCHLORATE ERBIUM (III) PERCHLORATE, 50% AQUEOUS SOLUTION (99.9%-ER) (REO) 50%aqueoussolution(99.9%-er)(reo) ERBIUM PERCHLORATE, 50% AQUEOUS SOLUTION: (99.9% REO) ERBIUM(III) PERCHLORATE, 50% AQUEOUS SOLUTION Erbium perchlorate, 50% aqueous solution Erbium(Ⅲ)Perchlorate ERBIUM (III) PERCHLORATE