Registration Dossier
Registration Dossier
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EC number: 224-169-7 | CAS number: 4223-03-4
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
The Henry's Law Constant of the substance is calculated from the vapour pressure and water solubility to be 0.0202 Pa .m3/mol at 25°C and 0.00965 Pa.m3/mol at the environmental temperature of 12°C.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0.01
- at the temperature of:
- 12 °C
Additional information
Volatilisation of organic compounds from surface waters is generally estimated by the Henry's law constant. The Henry's law constant for N-(1,1,3,3 -tetramethylbutyl)acrylamide can be calculated from the ratio of the vapour pressure (Pa) and the water solubility (g/m3). Based on the vapour pressure of 119 mPa at 25°C and the water solubility of 1010 mg/l at 20°C, the Henry's law constant was determined with EUSES 2.1.2 to be 0.0202 Pa .m3/mol at 25°C and 0.00965 Pa.m3/mol at the environmental temperature of 12°C. Considering the low value, volatilisation at environmental conditions is expected to be negligible.
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