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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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vapour pressure
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Principles of method if other than guideline:
The calculation was based on the Modified Watson Correlation by Lyman et al., 1990
GLP compliance:
Key result
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: calculated

The vapour pressure of test item was estimated to be 1.3E-10 Pa at 25 °C based on the boiling point and calculated using the Modified Watson Correlation.

The vapour pressure of test substance is 1.3E-10 Pa at 25°C (calculated)
Executive summary:

In this calculation conducted to generally accepted scientific standards the test material (EC 438-340-0) was determined to have a vapour pressure of 1.3E-10 Pa at 25°C.

Description of key information

Study conducted to generally recognised scientific standards.

Key value for chemical safety assessment

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

Additional information

1.3E-10 Pa at 25°C (calculated)

The calculation was based on the Meissner's method and the Modified Watson Correlation by Lyman et al, 1990