| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a novel absorbing material for an acidic substance capable of simultaneously absorbing and holding hydrogen ions constituting an acid and anions, and a separation method for an acidic substance using the same. <P>SOLUTION: The absorbing material for the acidic substance contains an amphoteric compound represented by formula (1): R<SP>1</SP>-A<SP>+</SP>-R<SP>2</SP>-B<SP>-</SP>(R<SP>1</SP>is a hydrogen atom or a hydrocarbon group which may have a substituent, R<SP>2</SP>is a hydrocarbon group which may have a substituent, A<SP>+</SP>is a functional group having positive charge, and B<SP>-</SP>is a functional group having negative charge). <P>COPYRIGHT: (C)2004,JPO</p> |
