Date   : Sun, 06 May 2012 09:40:37 +0100
From   : info@... (Sprow)
Subject: Tip for repairing a duff Master keyboard key

On 05 May, Rick <rick@...> wrote:
> > Note: as I recall from A levels, weak is the opposite of strong
> > which is different to dilute versus concentrated
>
> Ah, you're getting into complicated stuff that is damn hard to explain  
> to normal people...

Once you get your head round what a "dilute strong acid" means you have all
the jedi skills you need.

On 05 May, Glen Davies <davies.glen@...> wrote:
> Would the liquid silver cleaner Goddards silver dip iirc been a better bet?
>
> Removes tarnish from silver jewelry well and its a liquid.

There may well be proprietary products that are more appropriate than kettle
descaler, however kettle descaler was all I had in the cupboard!

Pretty much all salts of silver are insoluble, so it is just a process of
displacing the oxide/sulphide to expose a bit of new metal,
Sprow.