Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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:
January 03 - January 04, 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
no
Type of method:
effusion method: vapour pressure balance
Key result
Temp.:
20 °C
Vapour pressure:
0.007 Pa
Key result
Temp.:
25 °C
Vapour pressure:
0.015 Pa
Key result
Temp.:
50 °C
Vapour pressure:
0.37 Pa

Individual results

The vapour pressure was measured in the temperature range of 20 °C to 45 °C. The measured vapour pressures at the corresponding temperatures are listed in Table 1. After the measurement a mass loss of approx. 15% (w/w) was determined.

Table 1: Measured vapour pressures and corresponding temperatures

Temperature /°C

Vapour pressure / hPa

20

7.9·10E-5

25

1.4·10E-4

30

2.9·10E-4

35

5.7·10E-4

40

1.1·10E-3

45

2.1·10E-3

For an extrapolation to lower temperatures the Antoine equation was used. This is a conservative estimation of the vapour pressure of the test item for the listed temperatures.

Table 2: Calculated vapour pressure at 20, 25 and 50°C.

T/°C

p/hPa

p/Pa

20

7.4·10 E-5

7.4·10E-3

25

1.5·10E-4

1.5·10E-2

50

3.7·10E-3

3.7·10E-1
Conclusions:
The vapour pressure of the test item was determined to be 7.4·10E-5 Pa (20 °C), 1.5·10E-4 Pa (25 °C) and 3.7·10E-3 Pa (50 °C).
Executive summary:

A study was performed according to OECD TG 104 and Commission Regulation (EC) No. 440/2008, method A.4 in order to determine the vapour pressure of the test item by using the effusion method. The vapour pressure was measured at various temperatures between about 20 and 45°C. The vapour pressures of the test item at 20, 25 and 50 °C were extrapolated by using the Antoine constants with following results: 7.4·10E-5Pa (20 °C), 1.5·10E-4 Pa (25 °C) and 3.7·10E-3Pa (50 °C).

Description of key information

The vapour pressure of the test item was determined to be XXX Pa (20 °C), XXX Pa (25 °C) and XXX Pa (50 °C) using the effusion method.

Key value for chemical safety assessment

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

Additional information

A study was performed according to OECD TG 104 and Commission Regulation (EC) No. 440/2008, method A.4 in order to determine the vapour pressure of the test item by using the effusion method. The vapour pressure was measured at various temperatures between about 20 and 45°C. The vapour pressures of the test item at 20, 25 and 50 °C were extrapolated by using the Antoine constants with following results: 7.4·10E-5Pa (20 °C), 1.5·10E-4 Pa (25 °C) and 3.7·10E-3Pa (50 °C).