PROBLEM TO BE SOLVED: To provide α-ferric oxide having excellent dispersibility, transparency and ultraviolet shielding property.SAWADA SEIJI沢田 誠司KOBAYASHI KENICHI小林 賢一SUZUKI JUNICHI鈴木 淳一KOIDE MASASHI小出 昌史
Alpha-ferric oxide, chromic oxide, activated carbon, and graphite were examined as a support medium for a 68Ge 68Ga generator stable against chemicals and radiation. Alpha-ferric oxide is found to be a suitable material for the generator. The elution yield of 68Ga from the column of α-ferr...
Alpha-ferric oxide in trigonal structure is found to be a suitable material for the generator. The elution yield of 68 Ga from the column of trigonal crystal of 伪-ferric oxide with absorbed 68 Ge(IV) can reach 90% in 1 ml 0.05 mol/l HCl solution, while the breakthrough of 68 Ge ...
ALPHA-FERRIC OXIDE AND ITS PRODUCTIONPURPOSE: To produce superfine nonacicular α-ferric oxide particles each made of a single crystal, having a narrow particle size distribution, minimizing flocculation energy because of the most stable surface state as particles and remarkably excellent in ...
Gardner RFG, Sweett F, Tanner DW (1963) The electrical proper- ties of alpha ferric oxide-II. J Phys Chem Solids 24(10):1183-1196R. Gardner, F. Sweett, D. Tanner, The electrical properties of alpha ferric oxi- dedII: ferric oxide of high purity, J. Phys. Chem. Solids 24 (1963)...
Alpha-ferric oxide in trigonal structure is found to bea suitable material for the generator. The elution yield of68Ga from the column of trigonal crystal of α-ferric oxide with absorbed68Ge(IV) can reach 90% in 1 ml 0.05 mol/l HCl solution, while the breakthrough of68Ge was ...
PROCESS FOR PRODUCING ALPHA FERRIC OXIDEPURPOSE:To provide the subject process comprsing subjecting a precipitate, an iron hydroxide or oxy iron hydroxide produced by adding an alkali to an aqueous solution of a Fe compound (such as FeSO4 or the like) to hydro thermal treatment in a strong ...
MANUFACTURE OF NEEDLE ALPHA FERRIC OXIDEPURPOSE: To provide needle-like α-FeO by supplying the fixed amount of oxygen or oxygen containing gas at a prescribed temperature to alkali metal halogen iron (III) melt.RIYUDEIGAA KUNAIPUKAARIN SHIYUMITSUTSU...
A method for preparing the alpha type ferric oxide which has uniform particle distribution and a columnar or flower-like structure with excellent magnetic property is provided. The method comprises the following steps of: preparing water-soluble potassium ferricyanide solution and sodium hydroxide ...
PURPOSE:To obtain alpha-ferric hydroxide oxide having excellent acicular form and free from coagulation, by oxidizing a mixed aqueous solution of a ferrous salt and an alkali hydroxide in the presence of a Ca salt, adjusting the concentration of the reaction product, and further oxidizing the ...