[Jewelry making - Article 00467] - Re: [Orchid] Bombing recipes?

[Paul D. Reilly]

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Peter,

    Your recall is good. That is the technique for disposal/
    neutralizing a quart of plating solution. 

    1 gallon of chlorine bleach to 1 quart of cyanide based solution to
    30 gallons of water, well stirred and left to sit covered overnight
    for the reaction to complete. At that point, the reaction products
    (according to my source, an older paper by PM refining) are safe to
    add to the municipal waste water system. 

Paul
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