All staff members of a Henkel chemical plant in St. Louis, Missouri, were evacuated after a report of a sulfuric acid leak and a possible explosion on May 1st, around 2 a.m.
Firefighters and the Hazardous Materials Task Force arrived at the facility on McKissock Avenue, along the north riverfront, reports KMOV. The Plant Manager (Engineer) joined them in investigating the situation. No injuries were reported.
An hour later, The St. Louis Fire Department made an official preliminary report via Twitter:
“The plant manufactures Surfactant (component within soap). During a process, the unintentional introduction of moisture created a violent chemical reaction/explosion. The involved area has been properly ventilated. The company is returning to service.”