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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: vapour pressure balance
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0.004 Pa

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 has been assessed to have been reached over 7 runs. Run 2 has not been included in the calculation due to an erroneous mass reading. The 7 runs reported have been used to calculate the vapor pressure.

Summary of vapor pressure data:

Run

Log10 [Vp(25°C)]

1

-2.53

3

-2.38

4

-2.47

5

-2.45

6

-2.44

7

-2.46

8

-2.50

Mean

-2.46

Vapor pressure

0.0035 Pa

Conclusions:
The vapor pressure of the test item has been determined to be 0.0035 Pa at 25°C.

Description of key information

A reliable, guideline study is available which determined the vapour pressure of the substance using a vapor pressure balance technique.

Key value for chemical safety assessment

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

Additional information