Our teacher just said we needed to wash our hands after the lab and make sure we didn't touch our faces etc. I talked to my brother about this and he said that those substance can get absorbed into your skin. I keep hearing things everywhere about how bad the lead paint on walls are as well. So, my question is: during the lab if I got a little of the solution on my hand unintentionally, is that stuff going to negatively affect my health? Thanks so much for your time!