Liver of Sulphur disposal

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I am a jewelry hobbyist and am just getting back into working with silversmithing, and so forth. I recently started working with PMC and Liver of Sulphur [Adv: Liver Of Sulphur [linked by editor to product info at MisterArt]] patina pieces. I made a very small (pint) of mixture to work with several pieces. The mixture is not grey with flakes on the bottom. How do I discard this mixture? There is nothing on the can that says how to properly discard it.

Mary Lou Froese
hobbyist - South San Francisco, CA, USA

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An MSDS sheet must be available from the manufacturer, Mary.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey