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EC number: 201-074-9 | CAS number: 77-99-6
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
The Henry´s Law Constant was calculated by using HENRYWIN v3.10.
From the values obtained with three different methods, the result from the Bond method was used for any exposure assessment: 1.5 E -03 Pa m³/mol corresponding to 1.48 E -08 atm m3/mol. The potential of trimethylolpropane to pass from the water phase into air is very low.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0.002
- at the temperature of:
- 25 °C
Additional information
Key study:
The Henry´s Law Constant was calculated by using HENRYWIN v3.10.
The following values were obtained:
- Calculated with the Bond method: 1.48 E -08 atm m3/mol corresponding to 1.5 E-03 Pa m³/mol
- Calculated with the Group method: 3.08 E -15 atm m3/mol
- Calculated from vapour pressure and water solubility (using values calculated with EPI): 7.451 E-12 atm m3/mol
The potential of trimethylolpropane to pass from the water phase into air is very low.
Reference: Lanxess, 2009
Supporting study:
Henry`s Law Constant was calculated for trimethylolpropane by using HENRYWIN v3.10 (Bond method): to be 1.5 E-03 Pa m³/mol at 25°C corresponding to 1.48 E-08 atm m3/mol.
Reference: Bayer, 2006
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