Manganese(IV) fluoride Manganese(IV) fluoride Manganese tetrafluoride, MnF, is the highest fluoride of manganese. It is a powerful oxidizing agent and is used as a means of purifying elemental fluorine. Manganese tetrafluoride was first unequivocally prepared in 1961 by the reaction of manganese(II) fluoride (or other Mn compounds) with a stream of fluorine gas at 550 °C: the MnF sublimes into the gas stream and condenses onto a cold finger. This is still the commonest method of preparation, although the sublimation can be avoided by operating at increased fluorine pressure (4.5–6 bar at 180–320 °C) and mechanically agitating the powder to avoid sintering
Manganese, Minnesota Manganese, Minnesota Manganese was a small village in Wolford Township, Crow Wing County, Minnesota, United States. Manganese lies roughly north of Trommald, Minnesota. Just off County Road 30, it is perhaps best identified by its location between Coles Lake and Flynn Lake. First appearing in the 1920 census, the village was abandoned by 1960. Named after the mining of its namesake, the village first appeared as "Manganese Village" in the 1920 Census with a population of 183. A post office called Manganese was in operation from 1912 until 1924. Over time, like most other minerals in the Cuyuna Range, all