Characteristic

Holmium(III) chloride is the inorganic compound with the formula HoCl₃.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.

Chemical formula：HoCl₃

Molar mass： 271.289 g/mol

Appearance： yellow crystals   hygroscopic

Density： 3.7 g/cm³

Melting point： 720 °C (1,328 °F; 993 K)

Boiling point： 1,500 °C (2,730 °F; 1,770 K) (decomposes)

Solubility in water：dissolves

Crystal structure：Monoclinic, mS16

Application

It is a common salt but is mainly used in research.