Holmium(III) nitrate pentahydrate is yellow to orange crystalline powder or crystals
Holmium Nitrate has specialized uses in ceramics, glass, phosphors and metal halide lamp, and catalyst. It is also used in Yttrium-Iron-Garnet (YIG) and Yttrium-Lanthanum-Fluoride (YLF) solid-state lasers found in microwave equipment (which are in turn found in a variety of medical and dental settings).
Ho(NO3)3 may be used as a precursor during the synthesis of GdVO4:Ln3+/Yb3+ (Ln3+ = Er3+, Ho3+, Tm3+, Tm3+/Ho3+/Er3+) by chemical co-precipitation technique. It may be used to prepare poly[[tetraaquadi-μ5-fumarato-μ4-fumaratodiholmium(III)] trihydrate].
Holmium(III) nitrate pentahydrate is used to prepare holmium-beta-cyclodextrin complex by reacting with beta- cyclodextrin, which posses potential pharmacological applications.