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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:
May 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
other: estimation based on the Grain-Watson (GW) equation
Specific details on test material used for the study:
TEST MATERIAL
- Substance identification/name in the report: LZ 596
- Molecular formula: C21H30N2
- Batch no.: 1229
- Analysis date: August 12, 2014
- Date of production: August 11, 2014

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage conditions: Controlled room temperature (15-25 ºC, below 70 RH%), protected from light and humidity.
- Stability under test conditions: stable for min. 3 years from manufacturing date
- Expiry date: August 10, 2017
- Safety precautions: Routine safety precautions (lab coat, gloves, safety glasses, face mask) for unknown materials were applied to assure personnel health and safety.
Key result
Temp.:
20 °C
Vapour pressure:
0 Pa
Key result
Temp.:
25 °C
Vapour pressure:
0 Pa
Key result
Temp.:
50 °C
Vapour pressure:
0 Pa
Key result
Temp.:
60 °C
Vapour pressure:
0 Pa
Key result
Temp.:
80 °C
Vapour pressure:
0 Pa
Key result
Temp.:
100 °C
Vapour pressure:
0 Pa
Conclusions:
The vapour pressure of the test item was estimated based on the Grain-Watson (GW) equation and found to be 4.7 E-10 Pa at 25°C.
Executive summary:

The study was performed to estimate the vapour pressure of LZ 596 applying the QSAR models recommended by OECD Environment Monograph No. 67. The principle of the method is based on the modified Watson correlation. The following values were obtained:

- at 20°C: 1.88 E-10 Pa

- at 25°C: 4.70 E-10 Pa

- at 50°C: 2.94 E-08 Pa

Description of key information

The study was performed to estimate the vapour pressure of LZ 596 applying the QSAR models recommended by OECD Environment Monograph No. 67. The principle of the method is based on the modified Watson correlation. The following values were obtained:

- at 20°C: 1.88 E-10 Pa

- at 25°C: 4.70 E-10 Pa

- at 50°C: 2.94 E-08 Pa

Key value for chemical safety assessment

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

Additional information

Source: GLP-report