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UK chemical plant explosion: Caustic soda liquid leak confirmed, assessment underway - http://t.co/W7Kg0KMJYV
— Michael van Poppel (@mpoppel) September 26, 2013

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Facts About Sulfur - Properties, sources and uses of the element sulfur. https://t.co/G7ZXBTtDzk
— The Beach .Network™ (@_BeachNetwork) September 29, 2017
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