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Environmental fate & pathways

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Calculations on phototransformation of sodium acrylate are not reliable since the test substance is a salt. Therefore, the respective EpiWin calculation is based on the structural analogue acrylic acid. After evaporation or exposure to the atmosphere, acrylic acid will react slowly with photochemically produced hydroxyl radicals. The calculated half-lifes is 39.59 hours, assuming a hydroxyl radical concentration of 500000 molecules/cm³. Thus, photodegradation is probably not of major concern under environmental conditions.

The hydrolysis of sodium acrylate is based on data of structural analogue acrylic acid, too. The results of a hydrolysis study conducted by Ricerca Inc. (BAMM 1990), showed that 14C-acrylic acid was stable to hydrolysis at pH 3, 7, and 11 at 25 °C.