
The blast was heard across Longview, about 50 miles north of Portland, Oregon, on Tuesday morning at the Nippon Dynawave Packaging Company.
Officials say an 80,000-gallon vat that was about 60% full caused the devastation around 7:18 a.m., inflicting chemical burns and other critical injuries on several people. Officials later said the vat contained "white liquor," a chemical combination of sodium hydroxide, sodium sulfide, and disodium carbonate.
They also confirmed that there were "fatalities related to the incident" without specifying a number, and that there were certain "individuals who remain unaccounted for." The dead will not be identified until after family members are notified, officials added.












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