09-04-2011, 07:29 AM
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Join Date: Jul 2010
Location: Planet Earth
Posts: 2,296
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Don't like the sound of that being copper sulfate, its an irritant and is toxic to humans, I got a bit on the back on my hand in chemistry and it made the skin all red and very sore, I presume its only in a very small concentration
From wikipedia
Quote:
Copper sulfate is an irritant.[20] The usual routes by which humans can receive toxic exposure to copper sulfate are through eye or skin contact, as well as by inhaling powders and dusts.[21] Skin contact may result in itching or eczema.[22] Eye contact with copper sulfate can cause conjunctivitis, inflammation of the eyelid lining, ulceration, and clouding of the cornea.[23]
Upon acute oral exposure, copper sulfate turns to be only moderately toxic.[24] According to studies, the lowest dose of copper sulfate that had a toxic impact on humans is 11 mg/kg.[25] Because of its irritating effect on the gastrointestinal tract, vomiting is automatically triggered in case of the ingestion of copper sulfate. However, if copper sulfate is retained in the stomach, the symptoms can be severe. After 1–12 grams of copper sulfate are swallowed, such poisoning signs may occur as a metallic taste in the mouth, burning pain in the chest, nausea, diarrhea, vomiting, headache, discontinued urination, which leads to yellowing of the skin. In case of copper sulfate poisoning, injury to the brain, stomach, liver, or kidneys may also occur.[
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