Holmium(III) chloride hexahydrate is a common salt but is mainly used in research. It exhibits the same color-changing behavior seen in holmium oxide, being a yellow in natural lighting and a bright pink color in fluorescent lighting.
Molar mass：271.289 g/mol
Appearance：Pale yellow to pink to orange crystals
Solubility in water：dissolves
Holmium(III) chloride hexahydrate is used as laboratory reagent and also used in proteomics research , optical glasses, structural ceramics, catalysts, electrical components and photo-optical material.