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Re: salt problem.
The conductivity of copper sulphate solution is very similar to that of
sodium chloride if you are dealing in terms of molar solutions, but the
solubility of copper sulphate is a bit lower, so the actual conductivity of
a staurated solution of copper sulphate is a bit higher, although I don't
think it is something to worry about considering the other advantages. This
is particularly the case if you use copper electrodes. The usual use of
copper wire is not the best way of making the electrodes though. I would
suggest either copper sheet or foil. At work we have used PCB board as
electrodes in electrolysis experiments, because we get it as offcuts from a
local factory, for free.
----- Original Message -----
From: Tesla List <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, October 07, 1999 2:41 AM
Subject: Re: salt problem.
> Original Poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>
>
> I like copper sulfate in water resistors, I think it would work well in
salt
> caps, but don't know about the conductivity
> It plates out as copper on the electrodes and isn't as corrosive
>
> -----Original Message-----
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
> Date: Wednesday, October 06, 1999 2:44 AM
> Subject: Re: salt problem.
>
>
> >Original Poster: Alan Podjursky <alan.p-at-clear-dot-net.nz>
> >
> >>Don't worry, all you have is a saturated salt solution, the deposit is
> >>excess salt, a good thing really, as it means that the solution will be
> >>saturated at all temperatures and thus the conductivity will be as high
as
> >>possible. Compared with other similar ionic compounds the solubility of
> salt
> >>(NaCl) is not all that high. I haven't got the actual figures to hand,
my
> >>Kay and Laby data tables are at work.
> >
> >What would be a better substitute for NaCl? That KCl fake salt stuff?
> >
> >-AlanP
> >
> >
> >
>
>
>