M Formula: | ThF4 |
Properties: | |
White powder. Dehydrated between 200 and 300C. D (anhydrous) 6.32 (24C), mp 1111C, above 500C reacts with atmospheric moisture to form thorium oxyfluoride, ThOF2, and finally the oxide, ThO2. Forms a series of compounds with other metallic fluorides such as NaF and KF. | |
Grade: | |
79–80% ThO2. | |
Hazard: | |
Toxic material. TLV: 2.5 mg(F)/m3. | |
Use: | |
Production of thorium metal and magnesium-thorium alloys, high temperature ceramics. ThOF2 is used as a protective coating on reflective surfaces. | |