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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
10 June 1996
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: estimated by calculation
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
Principles of method if other than guideline:
Modified Watson Correlation method, which calculates the vapour pressure from the boiling point that was calculated using the Meissner's method.
GLP compliance:
no
Type of method:
other: calculation
Specific details on test material used for the study:
Name: FAT 40'549/A
Batch No.: TV 1
Colour: yellow-brown
Aggregate State at room temp.: solid
Stability in Solvent: in water: 48 hours
Stability at storage conditions: stable
Molecular Weight: 1138 g/mol (free acid)
Analysis: HPLC
Storage: at room temperature
Expiration Date: January 01, 2001
Temp.:
25 °C
Vapour pressure:
< 0 Pa
Remarks on result:
other: The vapour pressure was calculated to be 2.2E-27 Pa at 25 degree C.
Conclusions:
The vapour pressure of FAT 40549/A was determined to be 2.2 10E-27 Pa at 25 degree C.
Executive summary:

The estimation of the vapour pressure of FAT 40549/A was based on the EEC directive 92/69, Annex V, Part A, Methods for the determination of physico-chemical properties, A4 "Vapour Pressure", EEC Publication No. L383, December 1992 and the OECD Guideline No. 104, "Vapour Pressure", adopted July 27, 1995.

The boiling point of FAT 40'549/A was calculated to be about 800 °C using Meissner's method. The vapour pressure of FAT 40'549/A was calculated to be 2.2 x 10-27 Pa from the calculated boiling point. From this result, it can be concluded that the vapour pressure of FAT 40549/A is too low to have any relevant effect on the air compartment.

Description of key information

Vapour pressure: 2.2 10E-27 Pa at 25 degree C.

Key value for chemical safety assessment

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

Additional information

The estimation of the vapour pressure of FAT 40549/A was based on the EEC directive 92/69, Annex V, Part A, Methods for the determination of physico-chemical properties, A4 "Vapour Pressure", EEC Publication No. L383, December 1992 and the OECD Guideline No. 104, "Vapour Pressure", adopted July 27, 1995.

The boiling point of FAT 40'549/A was calculated to be about 800 °C using Meissner's method. The vapour pressure of FAT 40'549/A was calculated to be 2.2 x 10-27Pa from the calculated boiling point. From this result, it can be concluded that the vapour pressure of FAT 40549/A is too low to have any relevant effect on the air compartment.

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