Located in the Atacama Desert, it was a production hub for ... prone to dampness and burned at a higher temperature than potassium nitrate, another type of saltpeter commonly used in gunpowder ...

This megaproject, which was proposed in December by U.S. power company AES Corporation's AES Andes subsidiary, may be built in Chile's Atacama Desert. The Atacama is famed for its pitch-black ...