Health Canada and Environment Canada are recommending adding a former chemical warfare agent, diethyl sulphate, to the country's list of toxic substances. Although the substance isn't a household name, it can be used to make fabric softeners or flocculants in wastewater and sewage sludge control, and in the production of pharmaceuticals, fragrances and dyes.
by Martin Mittelstaedt for theglobeandmail.com
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