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EC number: 884-585-5 | CAS number: 270586-78-2
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2022
- 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
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0.059 Pa
- Conclusions:
- At the temperature of 20.0°C, the vapour pressure PT of the test item was less than 5.93E-02 Pa.
Reference
Table 1. Benzoic Acid Vapour Pressure Test Result
Temperature T (K) | △m (mg) | Select duration time (min) | t (h) | Sample coated area F (cm2) | Evaporation rate VT (g·cm-2·h-1) | lgVT | Vapour Pressure PT | lgPT |
333 | 0.0130 | 50 | 0.833 | 0.332 | 4.70E-05 | -4.328 | 4.977 | 0.697 |
337 | 0.0552 | 50 | 0.833 | 0.332 | 2.00E-04 | -3.700 | 7.315 | 0.864 |
341 | 0.1072 | 50 | 0.833 | 0.332 | 3.88E-04 | -3.412 | 10.657 | 1.028 |
345 | 0.1693 | 50 | 0.833 | 0.332 | 6.12E-04 | -3.213 | 15.389 | 1.187 |
349 | 0.2549 | 50 | 0.833 | 0.332 | 9.22E-04 | -3.035 | 22.036 | 1.343 |
353 | 0.3729 | 50 | 0.833 | 0.332 | 1.35E-03 | -2.870 | 31.299 | 1.496 |
357 | 0.5333 | 50 | 0.833 | 0.332 | 1.93E-03 | -2.715 | 44.107 | 1.645 |
361 | 0.7484 | 50 | 0.833 | 0.332 | 2.71E-03 | -2.568 | 61.686 | 1.790 |
Note: Starting weighing mass was 43.4 mg, crucible inner diameter is 0.65 cm.
Description of key information
At the temperature of 20.0°C, the vapour pressure PT of the test item was less than 5.93E-02 Pa.
Key value for chemical safety assessment
- Vapour pressure:
- 0.059 Pa
- at the temperature of:
- 20 °C
Additional information
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