Registration Dossier

Physical & Chemical properties

Vapour pressure

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Determination has been run according to standardized method but without GLP compliance.
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
gas saturation method
Key result
Temp.:
20 °C
Vapour pressure:
0 Pa
Key result
Temp.:
25 °C
Vapour pressure:
0 Pa

The vapour pressure was determined at three different temperatures; 34°, 48° and 63°C. The flow rate was 500 -700 ml/min for 34°C, 600 ml/min for 48°C and 200 ml/min for 63°C. The logarithms of the determined vapour pressures were plotted against the inverted absolute temperature in order to extrapolate the vapour pressure for 20° and 25°C.

Conclusions:
The vapour pressure of coco dipropylene triamine was determined to be 4.7 x 10^-5 Pa at 20°C and 9.1 x 10^-5 Pa at 25°C (0.05 mPa at 20°C and 0.09 mPa at 25°C).
Executive summary:

The vapour pressure of coco dipropylene triamine (CAS no 91771-18-5) has been determined according to the OECD Guidelines for the Testing of Chemicals, No 104 “Vapour Pressure”, by the gas saturation method. LCMS was used for the quantification.

 

The vapour pressure was determined at three different temperatures 34°, 48° and 63°C. The flow rate was 500-700 ml/min for 34°C, 600 ml/min for 48°C and 200 ml/min for 63°C. The logarithms of the determined vapour pressures were plotted against the inverted absolute temperature in order to extrapolate the vapour pressure for 20° and 25°C.

 

The vapour pressure of coco dipropylene triamine was determined to be 4.7 x 10-5Pa at 20°C and 9.1 x 10 -5Pa at 25°C (0.05 mPa at 20°C and 0.09 mPa at 25°C).

Description of key information

Read across. The vapour pressure of coco dipropylene triamine was determined to be 4.7 x 10-5 Pa at 20°C and 9.1 x 10-5 Pa at 25°C (0.05 mPa at 20°C and 0.09 mPa at 25°C). 

Key value for chemical safety assessment

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

Additional information

Read across. As a worst case, the vapour pressure is read across from a substance with lower carbon chain distribution within the polyamine 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. Furthermore, the vapour pressure increase with decreasing hydrophilic group, that is, a triamine has higher vapour pressure than a tetraamine which is also a worst case.