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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: isothermal thermogravimetry
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material:test item supplied by sponsor/91112Y
- Expiration date of the lot/batch:12 March 2021
- Purity:92.4%

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:Controlled room temperature (15-25°C, ≤70% relative humidity)
- Stability under storage conditions: stability

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Final preparation of a solid:a suspension of the test item in n-hexane
Temp.:
25 °C
Vapour pressure:
<= 0 mm Hg
Temp.:
25 °C
Vapour pressure:
<= 0.004 Pa
Temp.:
20 °C
Vapour pressure:
<= 0 mm Hg
Temp.:
20 °C
Vapour pressure:
<= 0.003 Pa
Transition / decomposition:
no
Conclusions:
vapour pressure at 20°C:<=2.8*10-3Pa  (<=2.1*10-5 mm Hg)
vapour pressure at 25°C:<=4.4*10-3Pa  (<=3.3*10-5 mm Hg)
Executive summary:

The vapour pressure of the test item was investigated using isothermal thermogravimetric effusion method according to OECD TG 104 andEC Guideline A.4..The vapour pressure of the substance was found to be:

vapour pressure at 20°C:<=2.8*10-3Pa  (<=2.1*10-5 mm Hg)

vapour pressure at 25°C:<=4.4*10-3Pa  (<=3.3*10-5 mm Hg)

Description of key information

vapour pressure at 20°C:<=2.8*10-3Pa  (<=2.1*10-5mm Hg)

vapour pressure at 25°C:<=4.4*10-3Pa  (<=3.3*10-5mm Hg)

Key value for chemical safety assessment

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

Additional information

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