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Environmental fate & pathways

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Parent compound: stearoyl chloride: Accumulation in organisms is possible.

Hydrolysis product: stearic acid: Significant accumulation in organisms is not expected.

Stearoyl chloride has an estimated log Kow of 7.39 (BASF SE, 2009). The corresponding BCF estimate is 2181 (BASF SE, 2009), therefore accumulation in organisms is possible. However the test substance rapidly hydrolyses and forms stearic acid. Hence, the BCF-estimate may be of low relevance.

The hydrolysis product stearic acid has an experimentally determined log Kow of 8.23 (Sangster, 1993). Therefore based on log Kow accumulation in organisms is possible. However, the BCF was estimated to be 10 (BASF SE, 2009) and ca. 20 (BASF SE, 2010) using EPIWINv4.00 and Catabol - BCF base-line model (v01.04), respectively. Based on these BCF-estimates, significant accumulation in organisms is not expected.