Production manner and metal ion capture mannered null general expression of metal ion introduction

摘要

PROBLEM TO BE SOLVED: To easily obtain a metal ion introduced hydrotalcite compound having a specified composition by adding an alkali metallic salt or an alkaline earth metallic salt of an anion An- to a mixed aqueous solution of a divalent metallic salt and a trivalent metallic salt and bringing these into reaction in an alkali atmosphere.;SOLUTION: The metal ion introduced hydrotalcite compound has a structure of the formula, wherein M2+ is a divalent cation, M3+ is a trivalent cation, An- is an anion, 0.16≤x≤0.33, n≥1 and y0. The anion An- is preferably selected from the group consisting of an anion derived from an amino acid, the anion of condensed phosphoric acid, anions derived from β-diketones and a thiosulfate ion. When a hydrotalcite compound containing an antibacterial metal such as Cu or Zn in at least a part of M2+ is used as starting material, the antibacterial effect of the metal is expected.;COPYRIGHT: (C)2001,JPO