| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide ceramic balls which are used for removing ammonia being a source of a bad odor, can effectively adsorb and remove ammonia and suppress the formation of urinary calculus in a toilet or the like, and contribute to miniaturize an ammonia-removing device itself, and which are easily maintained and administrated and can be used for deodoring odors in the toilet; and to provide a method for producing the same. <P>SOLUTION: Each ammine complex formation type ceramic ball has a framework comprising silica (SiO<SB>2</SB>) and alumina (Al<SB>2</SB>O<SB>3</SB>), and contains alkaline metal and alkaline earth metal in an amount of ≥7 wt.% in total, which are supported between the gaps of the framework. Further, silver oxide (Ag<SB>2</SB>O) is fixed on the surface of each ball. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
