Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
August 02nd, 2011 - August 23th, 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: According to the OECD Guideline 104 and EU method A.4

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report Date:
2011

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
no
Type of method:
effusion method: vapour pressure balance

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0.001 Pa
Temp.:
25 °C
Vapour pressure:
0.002 Pa
Temp.:
50 °C
Vapour pressure:
0.038 Pa

Any other information on results incl. tables

Vapour Pressure Balance (Effusion Method)

The vapour pressure was measured in the temperature range of 24 °C to 73 °C. Above 24 °C a vapour pressure could be measured. The measured vapour pressures at the corresponding temperatures are listed in the following table:

Temperature / °C

Vapour pressure / hPa

24.4

1.2× 10-5

29.5

3.2× 10-5

33.4

5.4× 10-5

39.2

1.1× 10-4

42.7

1.5× 10-4

47.2

2.8× 10-4

52.3

4.7× 10-4

56.4

7.3× 10-4

61.3

1.4× 10-3

66.6

2.3× 10-3

73.2

4.7× 10-3

The following vapour pressure values for the test item were extrapolated from the experimental data:

T / °C

p / hPa

p / Pa

20

8.9× 10-6

8.9× 10-4

25

1.8× 10-5

1.8× 10-3

50

3.8× 10-4

3.8× 10-2

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test substance was 0.00089 Pa at 20°C and 0.0018 Pa at 25°C.
Executive summary:

The vapour pressure of the test item was determined according to the European Commission Regulation (EC) No. 440/2008, Part A: Methods for the determination of physico-chemical properties A.4. Vapour pressure: Vapour Pressure Balance (Effusion method) and OECD test guideline OECD 104 (Vapour pressure).

The following vapour pressure values for the test item were extrapolated from the experimental data:

T / °C

p / hPa

p / Pa

20

8.9× 10-6

8.9× 10-4

25

1.8× 10-5

1.8× 10-3

50

3.8× 10-4

3.8× 10-2