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A chemical tank imploded and ruptured at a Nippon Dynawave Packaging facility in the US state of Washington on Tuesday, resulting in one death and nine injuries, while nine others remained unaccounted for as of Tuesday night, authorities said.
A joint written statement with Nippon and the Cowlitz County Sheriff’s Department said a tank containing “white liquor,” a chemical solution of sodium hydroxide and sodium sulfide used in making paper pulp, had ruptured around 7:15 am local time (1415 GMT).
While the tank was initially believed to hold around 80,000 gallons, officials later said it contained closer to 900,000 gallons of white liquor, with an estimated 90,000 gallons of material still inside the damaged tank.
Recovery efforts would resume on Wednesday at the site in the city of Longview in Cowlitz County, about 45 miles (72 km) north of Portland, Oregon, as the tank remained unstable, Longview Fire Department Battalion Chief Matt Amos said during a media briefing.
