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Environmental fate & pathways

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Due to the low vapour pressure of stearamide, a Henry’s Law Constant of 0.105 Pa m³/mol and the rapid half-life in air of 0.5 days calculated according to SRC AOPWIN, it is concluded that stearamide will not accumulate in air and will not be transported through the vapour phase into other environmental compartments in relevant amounts. Thus, air is not a likely route of environmental contamination and no accumulation and subsequent deposition of stearamide is to be expected.

The calculated log Koc of 4.6 indicates a potential to adsorb to soil and sediment. However, due to the ready biodegradability, the substance will not persist in these compartments and as the test substance is poorly soluble in water (< 0.1 mg/L) it is expected that sediments are, if at all, only exposed to very small amounts of the test substance, as amounts will be present in wastewater, they will be eliminated in common wastewater treatment plants to a large amount due to the readily biodegradability of stearamide.

The overall environmental fate profile indicates that stearamide is not to be persistence in the environment.