When chlorine gas seeped out of the massive industrial complex in Brazosport on May 20 and traveled downwind toward surrounding communities such as Clute, Lake Jackson and Richwood, some residents ...

Pure chlorine was first isolated from hydrochloric acid by Carl Wilhelm Scheele in 1774. Within a few years, its bleaching properties were discovered and in 1810 Humphry Davy announced that it was ...

Police say someone may have intentionally released chlorine gas at the Rosemont Hyatt Hotel in Illinois Dec. 6, 2014, sending 19 to the hospital and disrupting a convention to celebrate furry animals.

Insurgents exploded a truck carrying chlorine gas canisters Wednesday — the second such chemical attack in two days — while a U.S. official said ground fire apparently forced the downing of a ...

Chlorine gas travels low to the ground in greenish-yellow clouds before gradually dispersing. It has an intense, bleach-like smell that can help warn people of a nearby leak.