
Is it dangerous for the skin to come into contact with copper sulfate?
Today during the experiment, I accidentally got some copper sulfate solution on my hand. I didn't think much of it at the time, but now I'm a bit worried. Is skin contact with this substance dangerous? Could it cause skin corrosion or poisoning?

In general, there is a certain level of risk associated with skin contact with copper sulfate.
Copper sulfate is a toxic chemical substance, whose main toxic effects on the human body are caused by the copper ions it contains. When the skin comes into contact with copper sulfate, it may lead to symptoms such as pain, burning sensation, redness, swelling, and ulcers. Prolonged exposure or high concentrations may exacerbate these symptoms and even result in skin necrosis and ulceration.
Additionally, following skin contact with copper sulfate, skin discoloration may occur, presenting as blue-green or dark brown spots. This staining is usually temporary but can also cause some irritation and discomfort. Moreover, individuals with allergic constitutions may experience allergic reactions upon contact with copper sulfate, such as rashes and skin itching.
During occupational exposure to copper sulfate, appropriate personal protective equipment, including gloves, protective goggles, and long-sleeved clothing, should be worn to reduce the risk of skin exposure. Furthermore, copper sulfate should be stored in a sealed container, kept away from children and unauthorized personnel to prevent accidental contact.