Re: Water filtration

Art Chakalis (achakali@freenet.columbus.oh.us)
Fri, 19 Jun 1998 01:21:54 -0400 (EDT)

On Thu, 18 Jun 1998, John Rudiak wrote:

> Art Chakalis wrote:
> >
> > On Tue, 16 Jun 1998 dkern@juno.com wrote:
> >
> > > BTW, can anyone explain to me the differences between distilled water,
> > > deoinized water and filtered water?
> > >
> > > Thanks a lot!!
> > >
> > > David
> >
> > Distilled water is made by boiling water and then condensing the steam back
> > into water again. It removes everything from the water except materials
> > that have boiling points above that at which the still is operated at. In
> > a practical sense, distillation is assumed to remove everything but
> > organics with vapor pressures at or less than water.
> >
> Wouldn't it remove everything except those things which boil below what
> the pot is running at? The lower boiling point things would go over
> with the steam, the higher boiling stuff left in the pot?
>
> John
>
>
> --
> Alchemy Printmaking & Photography
> PO Box 633 Ranchos de Taos, NM 87557
> http://www.quetzl.com/Alchemy/index.html

John,

Good catch, it should read that distillation removes everything from the
water except materials that have boiling points below that at which the
still is operated at. The vapor pressure statement was correct as stated.

Thanks, Art

Art Chakalis
Columbus, Ohio, USA