PURPOSE: To obtain useful hydrated manganese oxide as an oxidizing agent which has a specified molecular formula, a remarkably strained crystalline structure and a large specific surface area.
CONSTITUTION: Hydrated managnese oxide shown by the formula I [x is a ratio of oxygen atom to Mn atom, (a) and (b) are a molecular ratio of hydroxyl group for the molecule shown by the formula II and the bound water, x is 1.66W1.77 and the value shown by the formula III is 0.44W0.5] and showing an X-ray diffraction pattern shown by the chart. The compound shown by the formula I is a novel compound for example, it can be manufactured by adding the amounts of ammonia more than the reactive equivalent to manganese sulphate to the aq. soln. of the manganese sulphate and blowing air or oxygen having ≥1atm partial pressure of oxygen therein. To obtain the aimed compound from a slurry of the reacted mixture obtained by said method, the slurry is filtered and the filter cake is washed with water to remove ammonia and ammonium sulphate.
TSUNEYOSHI KIKUJI
MORI KAZUTAKA
KUBO KIYOUJI
