Russian forces stepped up their attack on the battered city of Severodonetsk by striking a chemical plant that sent a huge cloud of smoke into the air. Footage taken by a Ukrainian defender shows a ...

Indianapolis Fire Department hazmat crews worked the scene of a chemical spill, involving nitric acid, at Imagineering Finishing Technologies on the northeast side of Indianapolis on Thursday, June 3, ...

A massive chemical leak spewed toxic orange plumes of dangerous acid into the sky, forcing a no-fly zone and mass evacuations near an explosive plant in Ohio, according to reports. About 3,000 gallons ...

TUCSON, Ariz. -- The Arizona Department of Public Safety is maintaining a shelter-in-place order to a one-mile perimeter around the hazardous spill of liquid nitric acid on Interstate 10 in Tucson.

Currently, nitric acid—a crucial chemical for weapons production—must be synthesized from ammonia, tying the United States to foreign exporters and presenting a supply chain risk in a future war.

A nitric acid leak at the Austin Powder Plant in Vinton County, Ohio, led to emergency evacuations Wednesday morning. Hundreds of residents in the Village of Zaleski and nearby areas were ordered to ...