[Amps] Silver

[LA7SL Nils P. Pedersen]

For those interested :
I have used Hydrochloric acid  for many purposes through many years without 
accidents of any kind.
But there are a few things to remember to play it safe:
.....Hydrochloric acid is the aqueous solution of hydrogen chloride gas 
(HCl). It is a strong acid, and the major component of gastric acid. It is 
also widely used in industry. Hydrochloric acid must be handled with 
appropriate safety precautions because it is a highly corrosive liquid.
Hydrochloric acid, or muriatic acid by its historical but still 
occasionally-used name, has been an important and frequently-used chemical 
from early history.....
(Source: Wikipedia)

Chemical Safety Data: Hydrochloric acid : 
http://www.pcl.ox.ac.uk/~hmc/hsci/chemicals/hydrochloric_acid.html
IMPORTANT :
****When diluting hydrochloric acid, always add acid slowly to water - never 
add water to acid.***'

Peter


----- Original Message ----- 
From: "Scott McGrath" <mcgrath at fas.harvard.edu>
To: "David Cutter" <d.cutter at ntlworld.com>
Cc: "John E. Cleeve" <g3jvc at jcleeve.idps.co.uk>; <Amps at contesting.com>
Sent: Tuesday, February 12, 2008 8:02 PM
Subject: Re: [Amps] Silver


> Masons use this under the form of "Muriatic Acid" as I recall the
> concentration is around 37%
>
> David Cutter wrote:
>> 2.5L will cost you about GBP13 from www.reagent.co.uk, but I doubt if you
>> need that much.  A proprietary cleaner and cotton bud would be easier.
>>
>> David
>> G3UNA
>>
>>
>>
>>
>>> Sorry to post this to the group, but my direct note to Mike was bounced 
>>> by
>>> his spam stopper.....
>>>
>>> Hello Mike,
>>> I find your advice very interesting. However my reason for this
>>> note....I am not a chemist, does HCL mean hydrochloric acid?.....if it
>>> does,
>>> then what handling precautions does one need to take in mixing and
>>> applying
>>> the  solution to the tarnished silver surface......I would be grateful 
>>> for
>>> your response in due course.....regards, John G3JVC.
>>>
>>>
>>>
>>>
>>>
>>>
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>>
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