Chlorine is a naturally occurring chemical element, one of the basic building blocks of matter. It was discovered in 1774 by Carl Wilhelm Scheele, and given its name in 1810 by Humphry Davy. The name chlorine is derived from chloros, meaning green, referring to the color of the gas.

Over the course of many decades of careful research and development, scientists have learned to use chlorine and the products of chlorine chemistry to make drinking water safe, destroy life-threatening germs, produce life-saving drugs and medical equipment, shield police and fire fighters in the line of duty, ensure a plentiful food supply and much, much more.

Click below to learn about how chlorine and chlorine products keep our families healthy, improve our environment, advance the horizons of science, and power America’s economy:

  • Safe Water: People put their trust in chlorine chemistry every day to keep their drinking water and swimming pools safe
  • Energy and Environment: Chlorine chemistry is a critical element of sustainability, conservation, and green energy innovation
  • Health and Safety: Chlorine chemistry saves lives and improves public health
  • Economic Benefits: Chlorine chemistry powers America’s economic engine
  • Secrets of Chlorine Chemistry: From blimps to bullet-resistant vests, see how chlorine chemistry touches people’s lives every day

Learn about the benefits of chlorine by watching the following videos:

To learn more, visit Chlorine Chemistry Division’s web site at



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