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Physical & Chemical properties

Vapour pressure

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Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1987
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
GLP compliance:
yes
Type of method:
spinning rotor
Key result
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: calculated
Key result
Transition / decomposition:
yes
Remarks:
decomposiion
Transition temp.:
ca. 174 °C

Using the static technique, the vapour pressure at 81.2"C was less than 1 Pa (being the lower detection level of the apparatus), leading to the conclusion, that the vapour pressure is lower than 10 Exp.-1 to 10 Exp.-02 Pa at room temperature. Using the spinning rotor technique, a vapour pressure of (1.0 -/+ 0.3) x 10 Exp.-02 Pa was determined at 25°C. Because the spinning rotor technique is not described in the Annex of Directive 84/449 EEC, the vapour pressure was also estimated, using the Modified Watson Correlation. This calculation resulted in a vapour pressure of 10 Exp.-05 Pa at 25°C for the pure test item.

Conclusions:
The vapor pressure was determined to be 0.0001 Pa at 25°C (calculated)
Executive summary:

The study was performed 1987 as GLP-test following EU-testing method A.4 and using the spinning rotor method. Using other techniques showed similar values; for details see results section. The vapor pressure was determined to be 0.0001 Pa at 25°C. From these results, it can be concluded that the vapour pressure of P5367 is too low to be of any environmental concern in this respect. An additional test, using the weight loss effusion technique was performed, obtaining similar results; see following supporting study.

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1988
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
GLP compliance:
yes
Type of method:
effusion method: by loss of weight or by trapping vaporisate
Key result
Temp.:
25 °C
Vapour pressure:
<= 0 Pa
Remarks on result:
other: extrapolated
Key result
Temp.:
81.7 °C
Vapour pressure:
<= 0.001 Pa
Remarks on result:
other: measured
Conclusions:
The vapor pressure was determined to be <= 1.3 E-03 Pa at 25°C (extrapolated).
Executive summary:

The study was performed 1988 as GLP-test following EU-testing method A.4 and using the weight loss effusion technique. The vapor pressure was determined to be <= 1.3 E-03 Pa at 25°C (extrapolated). From these results, it can be concluded that the vapour pressure of P5367 is too low to be of any environmental concern in this respect.

Description of key information

The vapour pressure was determined according to OECD-guideline no. 104, using different techniques. In conclusion, the vapour pressure was found to be 0.0001 Pa at 25°C

Key value for chemical safety assessment

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

Additional information

Reference: GLP-report