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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2004-08-18 to 2005-02-21
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
July 1992
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: by loss of weight or by trapping vaporisate
Key result
Temp.:
20 °C
Vapour pressure:
0.006 Pa
Temp.:
25 °C
Vapour pressure:
0.006 Pa
Conclusions:
The vapour pressure of 2,2-Dimethyl-3-lauroyloxy-propanal was determined by the effusion method (weight loss). The vapour pressure at 20 °C was determined to be 5.83E-03 Pa. The vapour pressure at 25 °C was determined to be 6.39E-03 Pa.
Executive summary:

The vapour pressure of 2,2-Dimethyl-3-lauroyloxy-propanal was determined following EU Method A.4 by the effusion method (weight loss).


The vapour pressure was determined at four different temperatures. 1/T was plotted versus log(P). The linear regression of 1/T vs. log(P) shows a correlation coefficient r² of 0.985.


 For the test item 2,2-Dimethyl-3-lauroyloxy-propanal, the following vapour pressures at 20 and at 25 °C were calculated from the regression equation:


Vapour pressure at 20 °C: 5.83E-03 Pa


Vapour pressure at 25 °C: 6.39E-03 Pa

Description of key information

For the test item 2,2-Dimethyl-3-lauroyloxy-propanal, the following vapour pressures at 20 and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 5.83*10E-03 Pa
Vapour pressure at 25 °C: 6.39*10E-03 Pa

Key value for chemical safety assessment

Vapour pressure:
0.006 Pa
at the temperature of:
25 °C

Additional information

The vapour pressure of Aldehyde L was determined following EU Method A.4 by the effusion method (weight loss). The vapour pressure was determined at four different temperatures. 1/T was plotted versus log(P). The linear regression of 1/T vs. log(P) shows a correlation coefficient r² of 0.985. For the test item 2,2-Dimethyl-3-lauroyloxy-propanal, the following vapour pressures at 20 and at 25 °C were calculated from the regression equation:


Vapour pressure at 20 °C: 5.83E-03 Pa


Vapour pressure at 25 °C: 6.39E-03 Pa