David
In a message dated 98-05-14 17:43:13 EDT, silh@iag.net writes:
> 
>  One other point: oxalic acid is not a "form" of potassium oxalate, oxalic
>  acid is the acid which, when combined with potassium becomes potassium
>  oxalate. When potassium oxalate is dissolved in water, the compound
>  dissociates into potassium ions and oxalate ions; as the potassium has
>  higher energy than the oxalate (a weak acid), the potassium hydrolyzes to
>  potassium hydroxide, making the solution highly alkaline, and very
>  corrosive. At normal temperatures, the process is infinitely reversible. In
>  solution, of course, there would be no airborne contamination, but
>  potassium oxalate, oxalic acid, and potassium hydroxide are all extremely
>  toxic when taken internally.
>