Hi Alec Cameron, hope you are having a nice day
Friday, 29 August 1997 17:29:04, Alec Cameron wrote to Jock Rogan
Subject: Cast Iron Kettles
 AC> Hi Jock
 AC> On (Wednesday, 27 August 1997) Jock Rogan wrote to All...
 JR>> I recently managed to obtain an old cast iron kettle that
 JR>> must be about 100 years old. Now I want this to sit on my wood
 JR>> stove and keep water hot for my coffee. Trouble is is seems to
 JR>> rust as it boils. It seems to need sealing of some sort.
 AC> Why is the rust a problem?
Wife thinks black water is un-appealing.
 AC> a. are you concerned that the brown beverage is unhealthy? If
 AC> the kettle is clean then no health risk. If it is an irritation, I
 AC> mean a worry, then you might dangle an inner vessel of stainless
 AC> steel filled with drinking water and use the outer brown water
 AC> jacket as a heat source.
I think it is the cosmetic value really. I hadn't thought of the health 
ssue.
Though if I believe the current hype on TV then I would guess the iron would
be useful. Especially if it could be digested:-)
 AC> Sealing is a danger 'cos the sealant might poison you. If the
 AC> sealant is electrolyic ie polar then accelerated corrosion due to
 AC> electrolysis might result. An immersed zinc or magnesium block
 AC> resting on the base might stop the rusting [cathodic protection]
 AC> but then you would have to ingest the consequent salts generated as
 AC> the "noble" metal does its job. If you suffer from indigestion or
 AC> stomach ulcers this might suit you fine!! but unsupervised
 AC> medication carries risks.
Well, I have found in the past that phosphoric acid was excellent at halting 
rust.
Seemingly it converts the rust into some sort of inert metal and bingo end of 
rust problem.
Wasn't sure about the health aspect of it though.
 AC> Cheers.....ALEC
 Thank you for your thoughts. Much appreciated!
 -=> Yours sincerely, Jock Rogan <=-
      Fido       : 3:800/409.4
      InterNet   :jock@tne.net.au
.!. I saw that! You were trying to steal my tagline, weren't you?
--- Terminate 5.00/Pro 
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