[Jewelry making - Article 00252] - Re: [Orchid] Sparex No 2 101

[R . E . Rourke]

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    Judy, take that pseudo-medical half-truth with a large grain of
    kosher salt- I don't know many using pure unlined copper as their
    standard vessel in the home or small studio- just more
    neo-superiority complex confusing the real subject: Sparex and it's
    properties,comparrisson to other chemical equals, and mixing
    proportions: 

    - Sparex = pHdown available at any xmart or pool store or some
    hardwares 

    - pH down = Sodium Bisulphate- without the clay, or other "inert
    ingredients" Krohn uses as filler to increase product weight and
    provide the user with a big slick of brown sludge on the top of each
    new batch..( it is completely unnecessary in pickle), that has to be
    swabbed up before use ( when it's heated it "coagulates" easier and
    is fairly easy to remove with toweling or paper).

    - A heavy concentration of sodium bisulphhate /pH down/ Sparex#2
    would = 2 cups imperial : 1 quart water, lesser yet still strong
    would be 1cup (8 oz.) to 1 quart..the 2:1 is great for a nearly
    stripping strength solution..or lightly oxidized alloyed silver
    (sterling, shibuichi, etc.)

    No one is preparing it as Leonid is suggesting and in large enough
    quantities to "cause lung nerve paralysis" - in fact the innervation
    of the lungs is secondary to the intestines so one would realize a
    gaseous uncomfortable feeling first then stop breathing..not going to
    happen in your crock pot / pickle pot! just 

    - keep some baking soda ( sodium bicarbonate) handy to neutralize
    spills or tubes and lentils that are submerged in pickle- a baking
    soda and water solution (1:4) should be used to soak the pieces in
    particularly if liquid has the potential of filling a cavity or
    recess that is not easily visible from outside the piece..
    Neutralizing it virtually eliminates the possibility of a customer /
    wearer's sweat or shower reactivating the dried in pickle and having
    a slight, yet unpleasant reaction to the mild acid. 

regards for the New year, RER
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