Date: Mon Mar 1 12:19:30 1999
Posted By: Henry Boyter, Senior Scientist
Area of science: Chemistry
Rinsing it out should be OK, but to be 100% sure, throw the thing away.
Copper sulfate pentahydrate has a human oral LD0 of 1088 mg/kg. Pretty
non-toxic to humans, but it is a listed pesticide and most labels say
harmful if swallowed. Save the grinder for other chemicals, buy a new one.
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