In a message dated 10/6/2001 12:40:55 PM Eastern Daylight Time, [email protected] writes:
> When the water is evaporated from a silver ionic solution, the silver ions > form a compound of silver that reduces to silver oxide. > > So if you spray a filter with a solution containing both ionic silver and > silver particles, what remains after the water is gone is silver particles > and > silver oxide. > > Silver oxide is less germicidal than metallic silver. > Frank: I doubt that silver oxide will form since it is unstable above about (I don't recall the exact temperature) 150C. And because its range of stability is at such a modest temperature, in all likelihood, a catalyst would be needed to have any chance of it forming at all. On the "plus" side, high surface area ceramics are known to have catalytic activity. Roger
