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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2016-10-28 to 2016-11-03
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: OECD Test Guideline 113: Screening Test for Thermal Stability and Stability in Air
Version / remarks:
1981
Deviations:
no
GLP compliance:
no
Type of method:
dynamic method
Key result
Temp.:
20 °C
Vapour pressure:
41.9 hPa
Remarks on result:
other: Calculated by interpolation and extrapolation of the measured vapour pressure curve obtained at temperatures between 43.2 to 74.6 °C
Key result
Temp.:
25 °C
Vapour pressure:
57.65 hPa
Remarks on result:
other: Calculated by interpolation and extrapolation of the measured vapour pressure curve obtained at temperatures between 43.2 to 74.6 °C
Key result
Temp.:
50 °C
Vapour pressure:
245.19 hPa
Remarks on result:
other: Calculated by interpolation and extrapolation of the measured vapour pressure curve obtained at temperatures between 43.2 to 74.6 °C

Thermal stability test indicates the test item showed no thermal effects up to a temperature of 300 °C.

The vapour pressure was measured in the temperature range of 43.2 to 74.6 °C. The measured vapour pressure values together with the measured temperatures are listed in in below table:

No.

Temperature / °C

Vapour pressure / hPa

Remark

1

43.2

174.2

measured up

2

57.1

349.2

measured up

3

62.8

448.9

measured up

4

66.1

549.8

measured up

5

68.6

648.3

measured up

6

74.6

846.3

measured up

7

71.9

749.0

measured down

8

64.2

498.1

measured down

9

53.4

249.0

measured down

From the measured data points of the vapour pressure curve the constants A, B and C of the Antoine equation can be derived by regression (Microsoft Excel) of the data points to A = 11.8875, B = -2422.99, C = 273.15.

The vapour pressure of the test item was calculated by interpolation and extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C.

Conclusions:
The vapour pressure of the test item was found to be 41.90 hPa at 20 °C, 57.65 hPa at 25 °C and 245.19 hPa at 50°C.
Executive summary:

In the current study the vapour pressure of the test item was assessed according to the OECD guideline 104 using the dynamic method: vapour-liquid equilibrium.

The vapour pressure of the test item was calculated by interpolation and extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, which was found to be 41.90 hPa at 20 °C, 57.65 hPa at 25 °C and 245.19 hPa at 50°C, respectively.

Description of key information

For this endpoint one study is available in which according to the OECD guideline 104 (dynamic method: vapour-liquid equilibrium).

The vapour pressure of the test item was calculated by interpolation and extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C. The vapour pressures were found to be 41.90 hPa at 20 °C, 57.65 hPa at 25 °C and 245.19 hPa at 50°C, respectively.

Key value for chemical safety assessment

Vapour pressure:
41.9 hPa
at the temperature of:
20 °C

Additional information