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> For example copper sulfate, used as organic fungicide. Why would one need to test for copper? The trace amounts of it that one would find are good for you. I
by markdown 7y ago
> For example copper sulfate, used as organic fungicide.
Why would one need to test for copper? The trace amounts of it that one would find are good for you. I mean, it's used for water piping in homes even.
- ceejayoz 7y agoThat's silly, like saying breathing chlorine is safe because it's a component in table salt. https://en.wikipedia.org/wiki/Copper(II)_sulfate#Toxicological_effects https://en.wikipedia.org/wiki/Copper(II)_sulfate#Toxicologic...
- markdown 7y agoNo, it's like saying eating trace amounts of copper is safe as proven by the fact humans have been doing that since forever, and by the fact that health authorities endorse it (hospitals have copper piping).
- ceejayoz 7y agoThe enormous and simple point you're missing: just like chlorine versus sodium chloride, copper sulfate is not the same thing as plain old copper.