Erbium(III) perchlorate solution erbium(3+) perchlorate ERBIUM(III) PERCHLORATE, 99.9%, 40 WT. % SOLUTION IN WATER ERBIUM PERCHLORATE ERBIUM(III) PERCHLORATE Perchloric acid erbium(III) salt Trihyperchloric acid erbium salt Erbium(III) perchlorate, 40 wt.% solution in water