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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

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Reference
Endpoint:
vapour pressure
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
2010-01-28
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Justification for type of information:
See section 13.2 for the read-across justification.
Reason / purpose for cross-reference:
read-across source
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
no
Type of method:
gas saturation method
Temp.:
20 °C
Vapour pressure:
0.001 Pa
Remarks on result:
other: The vapour pressure was measured at three different temperatures in order to extrapolate to 20°C
Temp.:
25 °C
Vapour pressure:
0.001
Remarks on result:
other: The vapour pressure was measured at three different temperatures in order to extrapolate to 25°C
Conclusions:
The vapour pressure of the test substance has been determined to 0.73 mPa at 20°C and 1.2 mPa at 25°C.
Executive summary:

The vapour pressure of the test substance has been determined to be 0.73 mPa at 20 °C and 1.2 mPa at 25 °C for Ethanol, 2,2'-iminobis-, N-C12-18-alkyl derivs. (PFAEO C12-18). Since the source substance is a substance with the same structure but a shorter alkyl chain length and a lower molecular weight, these data are used as a worst case value for Octadecylbi(2-hydroxyethyl)amine (PFAEO C18).

Description of key information

The vapour pressure of the test substance has been determined to be 0.73 mPa at 20 °C and 1.2 mPa at 25 °C for Ethanol, 2,2'-iminobis-, N-C12-18-alkyl derivs. (PFAEO C12-18). Since the source substance is a substance with the same structure but a shorter alkyl chain length and a lower molecular weight, these data are used as a worst case value for Octadecylbi(2-hydroxyethyl)amine (PFAEO C18).


 


The vapour pressure of the test substance has been determined to 0.73 mPa at 20°C and 1.2 mPa at 25°C.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
20 °C

Additional information

As a worst case, the vapour pressure is read across from a substance with lower carbon chain distribution within the Primary Fatty Amine Ethoxylated (PFAEO) category. Since the vapour pressure increase with decreasing hydrophobe in a specific homologue, it is a worst case to read across from a substance with lower carbon chain distribution. A value at higher temperature has been estimated using linear regression and the constants obtained from measure data.