[Jewelry making - Article 00074] - Re: [Orchid] The Joy of Citrus pickle

[John Burgess]

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>     I took a photography class.   one of the chemicals used in the
>     print making process was made from pure citric acid.  It was sold
>     as glacial, or possibly galactic acid.  Very nasty in its undiluted
>     form but very inexpensive. Perhaps this might be used to make a
>     pickeling solution. 

    G'day.  My memory doesn't always work either,  but the  chemical
    mostly used in photography was called an 'acid stop bath,' after
    development was complete.  Some used sodium bisulphate, but almost
    any acidic substance would do. I never heard of citric acid being
    used; I used common or garden vinegar - which is dilute acetic acid
    - cheap and easily come by. 

    The full strength acetic acid is called 'glacial' because it freezes
    solid at 15 C, and yes, it burns and blisters human flesh at that
    strength.  But the diluted stuff is very nice on lettuce salads. It
    might work well as a pickle 

-- 
Cheers for now,
JohnB of Mapua, Nelson NZ

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