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EC number: 947-993-5 | CAS number: -
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:
- 07 March 2018 to 28 March 2018
- 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
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- effusion method: isothermal thermogravimetry
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0.031 Pa
- Remarks on result:
- other: equivalent to 2.3 x 10E-04 mm Hg
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0.057 Pa
- Remarks on result:
- other: equivalent to 4.2 x 10E-04 mm Hg
- Conclusions:
- The vapour pressure of the test item was determined to be 3.1 x 10E-02 Pa at 20°C (equivalent to 2.3 x 10E-04 mm Hg) and 5.7 x 10E-02 Pa at 25°C (equivalent to 4.2 x 10E-04 mm Hg).
- Executive summary:
GUIDELINE
The investigation was conducted in accordance with OECD Guideline 104 Vapour Pressure (March 23, 2006), EC Guideline A.4 Vapour Pressure (March 04, 2016) and EPAProduct Properties Test Guideline OPPTS 830.7950: Vapor pressure (August 1996). The isothermal TGA effusion method was applied for the determination of the vapour pressure of the test item.
RESULTS
The vapour pressure of the test item was determined to be 3.1 x 10E-02 Pa at 20°C (equivalent to 2.3 x 10E-04 mm Hg) and 5.7 x 10E-02 Pa at 25°C (equivalent to 4.2 x 10E-04 mm Hg).
Reference
RESULTS
- A representative weight loss curve of the test item is shown in Figure 4 (attached).
- The results of the isothermal TGA analysis for the test item are given in Table 3 (attached).
- The test item vapour pressure results at 20 °C and 25 °C are given in Table 4 (attached).
- The vapour pressure regression curve of the log Pt of the test item as function of the reciprocal temperatures is shown in Figure 5 (attached). The equation of the curve was: log Pt = -4651´1/T + 14.35 (r = 0.9995, n = 8).
Description of key information
The vapour pressure of the test item was determined to be 3.1 x 10E-02 Pa at 20 °C (equivalent to 2.3 x 10E-04 mm Hg) and 5.7 x 10E-02 Pa at 25 °C (equivalent to 4.2 x 10E-04 mm Hg) (OECD 104, EU Method A.4 and OPPTS 830.7950).
Key value for chemical safety assessment
- Vapour pressure:
- 0.057 Pa
- at the temperature of:
- 25 °C
Additional information
GUIDELINE
The investigation was conducted in accordance with OECD Guideline 104 Vapour Pressure (March 23, 2006), EC Guideline A.4 Vapour Pressure (March 04, 2016) and EPA Product Properties Test Guideline OPPTS 830.7950: Vapor pressure (August 1996). The isothermal TGA effusion method was applied for the determination of the vapour pressure ofthe test item.
RESULTS
The vapour pressure of the test item was determined to be 3.1 x 10E-02 Pa at 20°C (equivalent to 2.3 x 10E-04 mm Hg) and 5.7 x 10E-02 Pa at 25°C (equivalent to 4.2 x 10E-04 mm Hg).
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