What are some interesting facts about chlorine?

Interesting Chlorine Facts: Chlorine has been in use for thousands of years in other forms, but it wasn't named until 1810 by Sir Humphry Davy. Only fluorine is a lighter halogen than chlorine. It is the second most common halogen on Earth. The element itself is the 21st most common element, at about 170 parts per million. read more

Chlorine has multiple uses; it is used to disinfect swimming pools and to sterilize drinking water. It is also used to manufacture several commonly used products like plastic, paints, medicines, textiles and paper. Chlorine is the 21st most abundant element on Earth, and it is the second most common halogen. read more

Chlorine has caused quite a stir among researchers over the years because of certain harmful effects it may have on human health. Those effects, however, remain debatable. Chlorine is one of the atoms in a toxin that some South American frogs have in their skin. It can paralyze or even kill large animals, according to the American Chemistry Council. read more