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EC number: 410-690-9 | CAS number: 103055-07-8 CGA 184699
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:
- 20 Jan 1992 to 07 Feb 1992
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- yes
- Remarks:
- Only measured at 25 °C
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- yes
- Type of method:
- gas saturation method
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- < 0 Pa
- Conclusions:
- The vapour pressure of the test substance at 25 °C is lower than 4.0E-6 Pa.
- Executive summary:
The vapour pressure of the test substance was determined by the gas saturation method in accordance with OECD TG 104 and following GLP principles. The vapour pressure of the test substance at 25 °C is lower than 4.0E-6 Pa.
Reference
Results for hexachlorobenzene
Temperature |
Nitrogen flow rate volume |
Duration of experiment |
Amount of substance |
Vapour pressure |
|
(°C) |
(l(n)/h) |
(l(n)) |
(h) |
(µg) |
(Pa) |
25.5 |
4.5 |
63.26 |
14.2 |
22.105 |
2.8E-3 |
25.5 |
8.1 |
57.25 |
7.06 |
19.697 |
2.7E-3 |
25.5 |
14.4 |
53.94 |
3.74 |
17.623 |
2.6E-3 |
The vapour pressure for hexachlorobenzene calculated with interpolation from the values given in the OECD TG 104 is equal to 4.75E-3 Pa for 25.2 °C.
The experimental results of our test measurements are within the estimated reproducibility, given by the same guideline. The experimental equipment is suitable for the determination of vapour pressure.
Remark: the volume of nitrogen is given in litres at normal conditions (0 °C and 1 atmosphere)
Results for the test substance
Temperature |
Nitrogen flow rate volume |
Duration of experiment |
Amount of substance |
Vapour pressure |
|
(°C) |
(l(n)/h) |
(l(n)) |
(h) |
(µg) |
(Pa) |
25.0 |
10.5 |
1730.6 |
164.33 |
<1.6238 |
<4.2E-6 |
25.0 |
10.6 |
1785.2 |
168.19 |
<1.6238 |
<4.0E-6 |
In conclusion, the vapour pressure of the test substance at 25 °C is lower than 4E-6 Pa.
Description of key information
Vapour pressure: <4.0E-6 Pa at 25 °C, OECD TG 104, gas saturation method, Geoffroy 1992
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
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