Be careful with mercury ....
Liquid form of mercury is especially dangerous because it vaporizes at room temperature. And when it vaporizes, it fills the air with tiny, invisible mercury atoms that are both scentless and soluble in oils or fats.
If mercury vapor is inhaled, it is easily absorbed by the body, where it first gets into the lungs and from there into the blood and the brain. The nerve poison can cause sleep disorders, agitation, and paralysis.
Even a simple thing such as a broken thermometer can lead to mercury poisoning. It can be particularly dangerous in a children's playroom if liquid mercury seeps into cracks and corners and is left undisturbed to vaporize.
"It's not like with hot water - water vaporizes and is gone. But mercury vaporizes more slowly, it can take days or weeks, and could be inhaled over a longer period of time,"
