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Environmental fate & pathways

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Abiotic degradation of 1,3-butylene diacetate (CAS 1117-31-3) is not a relevant pathway. Since the substance is not likely to be present in the atmosphere in relevant amounts based on the low Henry’s Law constant (< 1 Pa m³/mole (HENRYWIN v3.20); Müller, 2011) and the vapour pressure of 16.61 Pa, indirect photodegradation in air is not to be expected a relevant degradation pathway. Hydrolysis is not relevant, since the substance is readily biodegradable and is expected to be eliminated through biodegradation in natural waters. Additionally, the estimated half-life for abiotic hydrolysis is very high (DT50 value > 1 yr at pH 7).