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Erbium(III) chloride hydrate is an inorganic pink crystals.
E 1140 (OTTO) Erbium(III) chloride, hydrate, 99.99% Cas 19423-85-9 - used as a starting material for new edge-bridged octahedral M6 cluster compounds such as CsErTa6Cl18, for which electron and stability studies were performed.