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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12.06.2018 - 10.10.2018 (study plan - final report)
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes
Type of method:
effusion method: isothermal thermogravimetry
Key result
Test no.:
#1
Temp.:
>= 20 °C
Vapour pressure:
>= 0.007 - <= 7.6 Pa
Remarks on result:
other: Values below melting point
Key result
Test no.:
#2
Temp.:
>= 25 °C
Vapour pressure:
>= 0.012 - <= 12 Pa
Remarks on result:
other: Values below melting point

Since no accurate vapour pressure could be calculated from the obtained results below the melting point, the weight losses of the test item were compared with the results of Naphthalene at 50°C.

Since the weight loss of the test item was lower than the weight loss of the reference compound, the vapour pressure of the componds is considered to be below the vapour pressure of Naphthalene.
Conclusion (details see file attach under key result).

Description of key information

Since no accurate vapour pressure could be calculated from the obtained results below the melting point, the weight losses of the test item were compared with the results of Naphthalene at 50°C.

Since the weight loss of the test item was lower than the weight loss of the reference compound, the vapour pressure of the componds is considered to be below the vapour pressure of Naphthalene.

Key value for chemical safety assessment

Vapour pressure:
0.007 Pa
at the temperature of:
20 °C

Additional information