[Jewelry making - Article 00190] - [Orchid] Refining silver from photographic solution

[Juan Pablo Martenez Mansilla]

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Dear Friends,

    Do you know what is the process to clean silver recuperated from a
    photographic solution? 

    This Silver has been recuperated via an electrolytical process, but
    is contaminated with a black stuff.  The owner says it is carbon, but
    I melted the metal and it remained with widespread black covering. 

    Also, when melting, it gave up a foul smell.  I do not know what
    chemicals do the photographic process use, but I want to know if it
    is dangerous. 

    Thank you for your input. 

Best regards,
Juan Pablo Martenez Mansilla

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