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Manganous formate and acetate. Paltin, Edith; Grosu, Luminita; Selegeanu, Dinu.
RO 51886 19690924 Patent written in Romanian.
Abstract
The title compds. are prepd. directly from ores, which are treated with so lns. of org. acids in presence of a liq. oxidizer. Thus, to 100 kg 4.44% soln. of HCO2H, 4 kg 33% perhydrol was added, re sulting a 1.3% H2O2 content. This soln. was slowly added with stirring to 4 kg MnO2. Oxygen evolution ended after 1 hr at 20° and the mixt. was worked up to give 95 - 99.9% pure (HCO2)2Mn crystals. Similarly prepd. was Mn(OAc)2.
Refining of manganese acetate and cobalt acetate. Haas, Zdenek; Foniok, Alfred.
Czech. (1974),CS 153278 19740515 Patent written in Czech.
Abstract
Cryst. Mn(AcO)2 and Co(AcO)2 were dissolved at 70° in 50% aq. EtOH contg. 7-10% HONH3OAc or (HONH3)2SO4 (on the wt. of alc.) and the soln. cooled to give 72-5% cryst. product in which the amt. of insol. material has dropped from 0.1 to 0.005% and the Fe content from 0.005 to 0.001%.
Crystalline manganese acetate. Haas, Zdenek; Alfred, Foniok.
Czech.(1974),CS 152911 19740415 Patent written in Czech.
Abstract
Cryst. Mn(OAc)2 [638-38-0], useful as a highly active catalyst in polyester manuf., was prepd. by treating MnCO3 soln. with AcOH at 90° in the presence of a reducing agent, hydroxylamine sulfate [13973-61-0].
Study of the manganese acetate formation reaction.Novak, A. M.; Abadzheva, R. N.; Bel'ferman, A. L.
Zh. Prikl. Khim. (Leningrad) (1977), 50(9), 2135.
Abstract
Mn(OAc)2 was prepd. by treating MnCO3 with HOAc in H2O in 1:5.5:36.0 ratio at 80° with high-speed stirring.
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