Registration Dossier
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EC number: 228-667-5 | CAS number: 6320-03-2
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:
- April 20th, 2016.
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: Knudsen cell
- Remarks:
- (Knudsen cell)
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 64.47 Pa
- Key result
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 102.08 Pa
- Conclusions:
- The vapour pressure of the test substance is 64.47 Pa at 20 ºC and 102.08 Pa at 25 ºC.
- Executive summary:
The study of vapour pressure using effusion method was performed in accordance with the method EEC A4 (Knudsen cell). The vapour pressure of the test substance was determined to be 64.47 Pa at 20 ºC and 102.08 Pa at 25 ºC.
Reference
Vapour pressure of o-chlorobenzenethiol at 20 ºC and 25 ºC was calculated on the basis of equation log (p) = f (1/t) = a-b/(t+273.15) where: p – vapour pressure in Pa, t – temperature in ºC, obtained for four measurement points: 25.30C, 27.70C,30.40Cand 33.20C.
The calculated values were:
Test sample |
Vapour pressure at 20ºC[Pa] |
Vapour pressure at 25ºC[Pa] |
o-chlorobezenethiol
|
64.47 |
102.08 |
Description of key information
Key Study. Method according to EU A.4 / OECD 104 (Knudsen cell), GLP study. The vapour pressure of the test item is 64.47 Pa at 20 ºC, and 102.08 Pa at 25 ºC.
Key value for chemical safety assessment
- Vapour pressure:
- 64.47 Pa
- at the temperature of:
- 20 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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