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RE: re Mineral Spirits (water conductivity)
well if I can recall, water will itself split into ions, this is do to
structure, the ph of the di water is 7, ph is the mesure of how acid like it
is, or base like, water even DI water with very it's ph and the avarege is
7, so DI water is condictive, the ions make it so, ie salt, calcuim ect. do
do not use it, DI water will not conduct very well but will cause
problems....
-----Original Message-----
From: Tesla List [mailto:tesla-at-pupman-dot-com]
Sent: Saturday, February 27, 1999 11:29 PM
To: tesla-at-pupman-dot-com
Subject: RE: re Mineral Spirits (water conductivity)
Original Poster: "Coiler" <mycroft-at-access1-dot-net>
Jim:
Are you certain of this? That D.I. Water will actually conduct enough to
be a problem? The fact that the water will attack and ionize any metal to
become conductive being put aside, I thought DI water had resistances on the
order of megaohms?
Methinks the problem is that the water refuses to remain DI. We deal with
this all the time on our synchrotron and related beam transport systems.
We use DI water to cool our buss lines,power supplies and magnets - the
water
ciruculates in the windings - but it takes constant work to keep it that
way,
and our resin modules are treated as toxic waste (Lots of dissolved copper
from
the buss bars.) This is DC at low V (usually under 50) but high I (on the
order of 2500A) Perhaps this is why we get away with it..
Just a comment from the peanut gallery.
Michael Baumann
Coiler, Homebrewer, Nerd. mycroft-at-access1-dot-net
> -----Original Message-----
> From: Tesla List [mailto:tesla-at-pupman-dot-com]
> Sent: Saturday, February 27, 1999 12:35 PM
> To: tesla-at-pupman-dot-com
> Subject: Re: re Mineral Spirits (water conductivity)
>
>
> Original Poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>
>
>
>
>
> > Original Poster: Chris Tominkson <internetinbox-at-yahoo-dot-com>
> >
> > I heard from my oceanography teacher that pure water, just one
> > Hydrogen atom and 2 Oxygen, don't conduct electricity. He said that it
> > is the minerals and other stuff in water that conduct electricity. So
> > could you use distilled water for poly-rolled caps?
>
> This one comes up pretty often.. especially because water has a dielectric
> constant of 82, making for a lot of C in a small volume.
>
> Sadly, water isn't actually an insulator. If you put DC on it, it does
> conduct, as the water is electrolyzed into hydrogen and oxygen. However,
> for short pulses, it is an insulator, so it is used in fast transmission
> lines with HV pulses (like the Sandia Z-machine, for instance).
>
>
>