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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:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
July 24th, 2001
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
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)
Type of method:
other: calculation
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: estimated by calculation

Boiling point calculated with Meissner's method was 361 °C.

The contribution of molar refraction and parachor in the calculation of the boiling point are shown in tables attached as illustration.

Conclusions:
Vapour pressure was calculated to be 0.0049 mPa.
Executive summary:

Vapour pressure of the substance was calculated from the boiling point since the value was expected to be below the measurement range of an experimental determination, in accordance to instructions included in OECD TG 104. Boiling point calculated with Meissner's method was 361 °C. Using the Modified Watson Correlation, vapour pressure was calculated to be 4.9 *10-6 Pa.

Description of key information

Using the Modified Watson Correlation, vapour pressure was calculated to be 4.9*10-6 Pa at 25 °C.

Key value for chemical safety assessment

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

Additional information