タイトルヨミ
イオン コウカンタイ ニヨル ヨウイオン ノ ブンリ (ダイⅤホウ)
タイトル別表記
Separation of Cations by Ion-exchanger (ⅴ) : Separation of Alkali Metals, Alkaline Earth Metals, Mn, Al and Fe
著者
田中 昌也 化学教室
西川 英子
田中 善蔵 鳥取西高
抄録
Cation-exchange separation of Na, K, Mg, Mn, Al and Fe was studied in this paper. Exchangers used are Amberlite IR-120, Dowex 50W-X8 and Diaion SK#1, each belonging to a strong acid resin. Eluants are prepared mixing 1mol/1 formic acid and 1mol/1 ammonium formate, thus controlling the pHof the mixture. If necessary, methanol is added in order to make separation of ions more effective. Hydrochloric acid is also uesd as an eluant for separation of alkali metals. Fe, Na and K are eluted altogether with formate buffer solution of pH=3.2, and these ions are saparated in another exchanger. Na is eluted with 0.2ⁿ-HCl first, K with 0.5ⁿ-HCl second, and Fe with formate buffer solution of pH=3.2 finally. Next to Fe group, Al is separated with pH=3.4. MN and Mg are eluted with the same buffer solution succeedingly, but these ions are rather difficult to be separated, unless a long column of exchanger is used. Ca can be separated easily from other ions with formate buffer solution above pH=4.0. Addition of methanol to an eluant changes selective coefficient of cations, which makes saparation more accurate especially in case of alkalimetals. For the separation of Fe and Al, this effect of methanol can be hardly expected. In any case, these seven cations can be separated from each other satisfactorily, using both formate buffer solution and hydrochloric acid as eluants.
出版者
鳥取大学学芸学部
資料タイプ
紀要論文
ISSN・ISBN
04935608
書誌ID
AN00174530
掲載誌名
鳥取大学学芸学部研究報告. 自然科学
最新掲載誌名
鳥取大学教育学部研究報告. 自然科学
15
開始ページ
76
終了ページ
84
発行日
1954-12-15
著者版フラグ
その他
掲載情報
鳥取大学学芸学部研究報告. 自然科学. 1954, 76-84
部局名
地域学部・地域学研究科
言語
日本語