Registration Dossier
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EC number: 947-476-4 | CAS number: -
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
R814M is a salt of tallow-1,3 -diaminopropane (CAS no 1219010 -04 -4) and a mixture of talloil fatty acids, 2 -ethylhexoic and acetic acid.
As a worst case is the HLC calculated from the vapour pressure and CMC of N, C12-14 -alkyl-1,3-diaminepropane. This value is considered to be representative for the longer alkyl chain alkyl-1,3 -diaminopropanes and the acetate, 2 -ethylhexanoate and oleate salts.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0.002
- 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 is calculated from the ratio of the vapour pressure (Pa) and the CMC (mol/m3). The Henry's Law constant at environmental temperature is 0.0159 Pa.m3/mol at 12 C based on the vapour pressure of 0.0015 Pa, molecular weight of 240 and CMC of 149 mg/L. Considering the low values, volatilisation at environmental conditions is expected to be negligible.
This value is considered to be a worst-case representative for the longer alkyl chain alkyl-1,3 -diaminopropanes and the acetate, 2 -ethylhexanoate and oleate salts.
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