Re: Water Hardness Measurements

[Wright Huntley <huntley@ix.netcom.com>]

IDMiamiBob@aol.com wrote:
> 
> Wright writes:
> 
> <<  KH is
> < carbonate, or temporary hardness. >>
> >>
> If it is "temporary" hardness, where does it go?  I can't imagine calcium
> carbonate or magnesium carbonate just evaporating.  Or is cabonate hardness
> not what I think it is?

CaCO3 easily breaks down to relatively insoluble CaO, precipitated, and
CO2, which is given off to the air. That's why it is called "temporary"
AFAIK. Essentially it becomes "hard water" scale, and no carbonate ions
are left behind.

Wright

Wright Huntley, Fremont CA, USA, 510 494-8679 huntley@ix.netcom.com
"Subvert the dominant paradigm!"