Date : Sun, 25 Jun 2006 22:31:57 +0100
From : Philip Pemberton <philpem@...>
Subject: Re: More Eurobeebness
Sprow wrote:
> In article <449EE2EF.5050208@...>,
> Philip Pemberton <philpem@...> wrote:
>>> About 20 of those boards are probably beyond repair - battery leakage
>> I've repaired damage caused by battery leakage - usually it's a case of
attacking the corrosion with a fibreglass pen to remove the crap, vinegar to
neutralise the acid
>
> I'm confused. Vinegar is acetic acid, so how would that neutralise acid?
Robert.
Nickel-type rechargeable and alkaline primary cells contain an alkaline
electrolyte - usually potassium hydroxide. "battery acid" is a generic term
that hails from the days where the only batteries that were really available
were lead-acid accumulators (think "car battery").
Because KOH is alkaline, you add an acid to neutralise it (spirit vinegar is a
good one - easily available and about the right strength to do the job
properly), then wash with water to remove the acid, then IPA to force out the
water.
--
Phil. | Kitsune: Acorn RiscPC SA202 64M+6G ViewFinder
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