From: Alfred A. Skrocki[SMTP:alfred.skrocki-at-cybernetworking-dot-com]
Sent: Friday, September 19, 1997 3:04 AM
To: Tesla List
Subject: Re: Glass/poly and more...
On Wednesday, September 17, 1997 5:20 AM Greg Leyh
> Malcolm Watts wrote:
> > Unfortunately, water dissolves glass slowly which increases the ionic
> > content of the water and makes a less than suitable dielectric.
> > QED?
> Quite!! How fast does glass dissolve in water?
That depends on the amount of surface area of glass in contact with
the water and the temperature of the water. An old chemistry class
demonstration involved putting hot water in a stainless steel beaker
and adding a little phenolthalene (Sp.?)(a pH indicator) then adding
some crushed soda lime glass and stirringstirring with a stainless steel
spatula. In a matter of minutes the liquid would turn pink due to the
alkaline state induced from the dissolved carbonates in the glass.
Obviously if the water were cold and the glass not crushed it would
take much longer to dissolve.
\\ ~ ~ //
( -at- -at- )
Alfred A. Skrocki
-----( )---( )-----
\ ( ) /