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Chemical formula: Tm2O3

Appearance: Greenish-white cubic crystal

Density: 8.6 g/cm3

Melting point: 2,341 °C (4,246 °F; 2,614 K)

Boiling Point: 3,945 °C (7,133 °F; 4,218 K)

Solubility in water: slightl

Application：

1. It is mainly used in the manufacture of portable X-ray transmission devices, and is also used as a control material for reactors. 

2. It can also be used for fluorescent material lasers, electronics industry and scientific research