Manganese Fluoride MnF2 Chemical Properties: Reddish powder. Density 3.98g/cm3. Melting point 856 ℃. Soluble in acid. Insoluble in water, alcohol, ether. Red heat does not decompose. The manganese carbonate was dissolved in hydrofluoric acid, evaporated, and dried at 110 °C. Or by eutectic melting of manganese dichloride and sodium fluoride and leaching with water. Raw material for kiln industry and non-ferrous metal welding.

In metallurgy, the extraction of metals by fluorination method is to first prepare the metals to be extracted from the raw materials into pure oxides, and then use a fluorinating agent to convert the oxides into fluorides, and use the characteristics of metal fluorides to further purify , and finally obtain pure metal by metal thermal reduction or molten salt electrolysis. Commonly used fluorinating agents in industry are elemental fluorine or hydrogen fluoride gas.

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