“Batch Cyanide” Markings at Superior Plating
Taken April 2013
Superior Plating was a metal finishing plant in the Northeast Minneapolis Arts District that closed after decades of operation. Yellow lettering reading "Batch Cyanide" marks a holding tank once used in the plant's electroplating process, where cyanide based solutions helped bond metal coatings to parts. Pipes and valves still run along the tank where workers once managed the chemical batches.
Taken April 2013
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