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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
22 March 2016
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:
2009
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Deviations:
no
GLP compliance:
no
Type of method:
effusion method: isothermal thermogravimetry
Key result
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
0.917 Pa
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
1.28 Pa
Test no.:
#3
Temp.:
50 °C
Vapour pressure:
5.95 Pa

Table 1. Weight loss of the test item in the temperature range of 50°C to 80°C

 Temperature (°C  1/T (K)  1000/T (K)  Weight loss (μg/min)  V_T (g/cm2h)  logV_T
 50  0.00310  3.09598  2.6000  0.000312  -3.505845
 50  0.00310  3.09598  2.4910  0.000299  -3.524445
 50  0.00310  3.09598  2.7330  0.000328  -3.484179
 60  0.00300  3.00300  4.2430  0.000509  -3.293146
 60  0.00300  3.00300  4.4620  0.000535  -3.271289
 60  0.00300  3.00300  4.9930  0.000599  -3.222457
 70  0.00292  2.91545  6.3750  0.000765  -3.116339
 70  0.00292  2.91545  6.7690  0.000812  -3.090294
 70  0.00292  2.91545  7.8430  0.000941  -3.026337
 80  0.00283  2.83286  8.6970  0.001044  -2.981449
 80  0.00283  2.83286  9.3070  0.001117  -2.952009
 90  0.00283  2.83286  11.3700  0.001364  -2.865058

Table 2. Estimation of V_T and P_T

 Temperature (°C)  logV_T  logP_T  P_T
 20  -4.1744758  -0.0377379  0.91677351
 25  -4.0500685  0.1081047  1.28263991
 50  -3.4858062  0.7695894  5.88287203
Conclusions:
The vapour pressure of the test item was determined by isothermal thermogravimetry to be 0.917 Pa at 20 °C, 1.28 Pa at 25 °C and 5.95 Pa at 50 °C.
Executive summary:

The vapour pressure of the test item was determined by isothermal thermogravimetry to be 0.917 Pa at 20 °C, 1.28 Pa at 25 °C and 5.95 Pa at 50 °C. This study is reliable without restriction (Klimisch 1) as it was performed according to guidelines EU A.4 and OECD 104. The study was not GLP-compliant, however the test facility is GLP-compliant.

Description of key information

The vapour pressure of the test item was determined by isothermal thermogravimetry to be 0.917 Pa at 20 °C, 1.28 Pa at 25 °C and 5.95 Pa at 50 °C.

Key value for chemical safety assessment

Vapour pressure:
0.917 Pa
at the temperature of:
20 °C

Additional information

This study is reliable without restriction (Klimisch 1) as it was performed according to guidelines EU A.4 and OECD 104 (2016). The study was not GLP-compliant, however the test facility is GLP-compliant.