Lutetium(III) chloride hexahydrate is used as a catalyst and laboratory reagent. It is also used in ceramics, optical glasses, electrical components and photo-optical material. It is one of the components of scintillating composition. It serves as a precursor for the preparation of other lutetium complexes. It finds application as one of the starting materials for aluminate phosphors.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.