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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From July 20, 2017 to August 15, 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
not specified
Type of method:
dynamic method
Specific details on test material used for the study:
CAS No.: 544-31-0; EC No.: 208-867-9; Appearance: white solid at ambient temperature
Key result
Temp.:
20 °C
Vapour pressure:
0.45 Pa
Key result
Vapour pressure:
11 Pa
Conclusions:
Under the study conditions, the test substance vapour pressure was established at 4.4-E6 atm (4.5-E1 Pa; 4.5-E3 mbar) at 20 °C and of 1.0-E4 atm (1.1+E1 Pa; 1.1+E1 mbar) at 50 °C. The calculation is based on the lowest possible boiling temperature (Grain-Watson estimation).
Executive summary:

A study was conducted to determine the vapour pressure of the test substance according to OECD Guideline 104 and similar to EU Method A.4. Under the study conditions, the test substance vapour pressure was established at 4.4-E6 atm (4.5-E1 Pa; 4.5-E3 mbar) at 20 °C and of 1.0-E4 atm (1.1+E1 Pa; 1.1+E1 mbar) at 50 °C. The calculation is based on the lowest possible boiling temperature (Grain-Watson estimation) (Kintrup, 2017).

Description of key information

The vapour pressure was determined according to OECD Guideline 104 and equivalent to EU Method A.4 (Kintrup, 2017).

Key value for chemical safety assessment

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

Additional information