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:
From 2017-07-25 to 2017-08-15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Version / remarks:
1996
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: Knudsen cell
Test material information:
Composition 1
Test no.:
#1
Temp.:
15.2 °C
Vapour pressure:
0.548 Pa
Test no.:
#2
Temp.:
20.3 °C
Vapour pressure:
0.906 Pa
Key result
Test no.:
#3
Temp.:
25.3 °C
Vapour pressure:
1.56 Pa
Test no.:
#4
Temp.:
30.4 °C
Vapour pressure:
2.77 Pa
Test no.:
#5
Temp.:
35.5 °C
Vapour pressure:
4.94 Pa
Test no.:
#6
Temp.:
40.6 °C
Vapour pressure:
8.28 Pa
Test no.:
#7
Temp.:
45.6 °C
Vapour pressure:
13.3 Pa

The measured vapour pressures above 25 °C are slightly outside the measuring range (10-3 to 1 Pa) of the Knudsen cell. Nevertheless, as the vapour pressure value above 1 Pa could be detected properly by the Knudsen cell, this value can be used for the evaluation.

The vapour pressure of the test item Methyl Benzyl Alcohol was calculated by interpolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006): For 20 °C the vapour pressure is 0.9 Pa, for 25 °C 1.6 Pa and for 50 °C 20.1 Pa respectively.

Conclusions:
In the study according to OECD 104 the test item showed a vapour pressure of 1.6 Pa at 25 °C.
Executive summary:

The vapour pressure of the test item was calculated by interpolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline No. 104 (2006) to be 0.9, 1.6 and 20.1 Pa respectively.

Description of key information

In the study according to OECD 104 the test item showed a vapour pressure of 1.6 Pa at 25 °C.

Key value for chemical safety assessment

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

Additional information

The vapour pressure of the test item was calculated by interpolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline No. 104 (2006) to be 0.9, 1.6 and 20.1 Pa respectively.