We should pay attention to strict protection when dealing with broken thermometers. Mercury thermometers are made of glass, so they break easily. After being broken, the mercury inside will be scattered to the ground and other parts. If not treated in time, mercury will evaporate to form mercury vapor, which will lead to mercury poisoning after being inhaled by human body. Therefore, when the mercury thermometer is broken, we should pay attention to collect the scattered mercury and put it in a closed bottle.
Mercury that cannot be completely collected can be sprinkled with some sulfur powder.