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1. "It exhibits some solubility in water" but "is a pervasive groundwater contaminant, due to its high water solubility". Which is it??? — Preceding unsigned comment added by 121.219.147.11 (talk) 11:00, 19 May 2015 (UTC)Reply

class project in March 2017 it seems

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Please see here. Jytdog (talk) 21:33, 18 March 2017 (UTC)Reply