When Germany unleashed chlorine gas at Ypres in 1915, it marked the dawn of modern chemical warfare. Soldiers had no masks, ...

A small piece of sodium metal is placed in a flask of chlorine gas. A little water helps expose the sodium so it can react with the chlorine gas. The reaction releases a lot of heat as the ionic ...

But chlorine can also promote ozone formation in the right chemical environment, which can be found, for example, near the Earth's surface. Here ozone acts as a pollutant, harmful to humans ...

Now, a team of chemists at Rice University has developed a more environmentally friendly way to integrate chlorine into chemical building blocks for medications, plastics, pesticides and other ...