[NJARC] Removing acid (powder) in old radios

[Michael S Christiansen]

I believe the baking soda is a base and will help to neutralize the acid.
 Mike Christiansen
On Sat, 5 Aug 2006 12:32:01 -0400 (GMT-04:00) Nick Senker
<ns539 at earthlink.net> writes:
> Visit our web site - See http://www.njarc.org
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> Vacuum or blow as much powder out ot the chamber as possible, then 
> make a paste of baking soda (bicarbonate) with water and brush on, 
> then rinse.  This is less powerful than ammonia but is safer to use. 
> Your feedback would be appreciated.  Nick Senker
> 
> -----Original Message-----
> >From: Pmalvasi at aol.com
> >Sent: Aug 5, 2006 11:39 AM
> >To: njarc at mailman.qth.net
> >Subject: [NJARC] Removing acid (powder) in old radios
> >
> >Visit our web site - See http://www.njarc.org
> >_______________________________________________
> >
> > 
> >On this 100th anniversary of the invention of LSD I have a question 
> about  
> >removing dried battery acid in old radios.  I recently acquired a 
> pair  of BC 
> >611 Walkie Talkies. One had the original batteries installed and 
> the  round one 
> >long ago leaked and exploded out of its tubular  casing. I fact so 
> much so 
> >that it ruptured the side of the housing of the radio  (but amazing 
> thanks to 
> >superb Motorola design the interior is partioned off  to the radio 
> board which 
> >are  immaculate!)  It took quasi-major excavation work to remove  
> the shell now 
> >fused to the inside of the case but I did it - leaving  lots of 
> powdered 
> >battery juice all over.  I was able to  brush much of it out and 
> away but residue 
> >remains. And some of the  powder is all over the contacts and 
> wiring in the 
> >lower section which  contains the clever connections to the 
> earpiece and 
> >microphones (also  cleverly well isolated in the housing).
> > 
> >Is there any chemical which is safe to use to get rid of that stuff 
>  properly 
> >or should I use the old soapy warm water treatment?
> > 
> >Last question, probably better suited to green radio list, is the 
> drab  green 
> >paint available? Fortunately the outter of the cases of each is  
> amazingly 
> >sound but a few dings - which I may leave anyway. I sense these 
> have  been 
> >stored in a very dry place as even the original green cloth 
> carrying  straps are 
> >quite sound and their color still good.
> > 
> >73 Pete W2PM
> >
> >Pete Malvasi
> >(201)  819-1065
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