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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
27 January 2017-01 February 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The study was conducted according to an internationally recognised method, and under GLP. No deviation was reported. Test substance is adequately specified with purity. Therefore full validation applies.
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:
yes (incl. QA statement)
Remarks:
UK GLP compliance programme (inspected on 05 July 2016 / signed on 28 Octobre 2016)
Type of method:
effusion method: vapour pressure balance
Key result
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other:
Remarks:
8 runs

Results

The values for the common logarithm of vapor pressure at 25 °C (298.15 K) extrapolated from each graph are summarized in the following table:

Run

Slope

Intercept

Log10 Vp (25°C)

1

-6.29 x 103

14.8

-6.27

2

-6.33 x 103

15.0

-6.30

3

-6.14 x 103

14.5

-6.12

4

-6.21 x 103

14.6

-6.18

5

-6.28 x 103

14.8

-6.24

6

-6.13 x 103

14.4

-6.11

7

-6.22 x 103

14.7

-6.19

8

-6.33 x 103

15.0

-6.29

Mean log10 Vp (25 ºC) = -6.21

Vp (25 ºC) = 6.17 x 10-7 Pa

The raw data is available in the experimental report.

The test item did not change in appearance under the conditions used in the determination.

A total of 8 runs were completed for the main sequence. Equilibrium with regard to vapor pressure was assessed to have been reached over the 8 runs. Thus all 8 runs have been used to calculate the definitive vapor pressure value for the test item.

The results may represent rounded-off values obtained by calculations based on the exact raw data.

The vapor pressure of the test item has been determined to be 6.2 x 10-7 Pa at 25 ºC.

Conclusions:
Low volatility (based on volatility bands criteria for occupational exposure (Chesar / ECETOC TRA), < 500 Pa).
Executive summary:

The vapour pressure of the test substance was measured under GLP according to OECD 104 / EU A4 guideline by an effusion method using a vapour pressure balance. 8 definitive runs were performed between temperatures of 120 and 130 °C. Vapour pressure at 25 °C was extrapolated from the regressions.

The runs yielded a mean vapour pressure value at 25 ºC of 6.2E-7 Pa.

 

The vapour pressure of the test item has been determined to be 6.2E-7 at 25°C.

Description of key information

Low volatility.

Key value for chemical safety assessment

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

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EU method, is available. It is considered as a key study. The result is retained as key data.