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Environmental fate & pathways

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Additional information

The substance has a low logKow (= 1.6) and is gaseous at room temperature. Thus, it is expected to have a low potential for adsorption. The Koc was calculated from the log Kow using the non-hydrophobics QSAR in EUSES: log Koc = 0.52·logKow + 1.02. The calculated Koc value is 71.1 L/kg. This predicted value is used in the assessment.

The Henry's law constant is calculated in EUSES using the substance's molecular weight of 114 g/mol, the experimentally determined vapour pressure of 427.1 kPa (at 20°C) and the water solubility of 373 mg/L (at 24°C). The Henry's law constant at environmental temperature (12 °C) is calculated to be 8.7E+04 Pa·m³/mol. Based on this value, the substance is expected to volatilise rapidly from water.