Registration Dossier
Registration Dossier
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EC number: 248-742-6 | CAS number: 27939-60-2
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
The Henry's law constant is calculated using the equation from EUSES. Using a molecular weight of 138.21 g/mol, and the experimentally determined vapour pressure of 66.1 Pa (at 24 °C) and water solubility of 381.8 mg/L (at 24°C) the Henry's law constant is calculated to be 12.1 Pa·m³/mol at environmental temperature (12 °C) or 25.3 at 25°C. According to ECHA guidance R7a on Henry C: “Table R.7.1–17 Conditions that have influence on HLC values: Important for aldehydes, which hydrate nearly completely in water, resulting in HLC apparent being several orders of magnitude lower than the intrinsic constant”. This means that the substance limitedly will volatilise from water.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 12.1
- at the temperature of:
- 12 °C
Additional information
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