| 摘要 |
PURPOSE:To control the generation of gas as well as to aim at improvement in storage capacity by covering the surface of zinc or its alloy powder with a film of an imidazole metal complex in specified thickness to be formed by a reaction with alkylimidazole. CONSTITUTION:The surface of zinc or its alloy powder is covered with a film of an imidazole metal complex of 0.01-0.75mu in thickness to be formed by a reaction with alkylimidazole. This alkylimidazole is not almost dissolved with water in a normal state, but it is dissolved in water under an acid atmosphere, ionized, and this ionized alkylimidazole shows a strong chemical reaction with the metal contacted with it, forming a layer of the metal-imidazole metal complex on a metal surface. With this constitution, this alkylimidazole layer forms a firm complex layer by dint of chemical bond on the surface of zinc or its alloy powder, whereby the metal surface is in no case exposed during storage, thus gas generation is properly controlled. |
