Manganese(IV) fluoride hydrofluoric acid. The pentafluoromanganate(1−) salts of potassium, rubidium and caesium, MMnF, can be prepared by fluorination of MMnF or by the reaction of [MnF(py)(HO)] with MF. The lemon-yellow heptafluoromanganate(3−) salts of the same metals, MMnF, have also been prepared. 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
SS Manganese was sold to the Sinai Manganese Co, Egypt and was renamed "Manganese". The ship was deleted from Lloyd's Register in 1993. SS Manganese Manganese was a coaster that was built in 1925 by Norderwerft AG, Hamburg, Germany as Wiedau for German owners. She was seized by the Allies in May 1945, passed to the Ministry of War Transport (MoWT) and was renamed Empire Contract. Later that year, she was transferred to Greece and renamed "Herakleion". She was sold into merchant service in 1948 and renamed Laconia. In 1965, she was sold to Egypt and renamed "Manganese". The ship was deleted