Registration Dossier
Registration Dossier
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EC number: 260-829-0 | CAS number: 57583-35-4
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- 25 °C
- Vapour pressure:
- 0.81 Pa
- Conclusions:
- The vapor pressure was determined to be 0.81 Pa at 25 deg C.
- Executive summary:
The vapour pressure of the test item has been determined using a method designed to be compatible with that specified in the current OECD Guidelines for Testing, Guideline No. 104 (OECD, 2006). The vapour pressure of the test item was determined to be 0.81 Pa at 25 degC. A slight, but gradual drop in vapour pressure was then observed on repeated temperature cycling of the test item over the range 20 to 30 degC (under vacuum), with individual values in the range 0.48 to 0.27 Pa for ten consecutive runs. Such characteristics, indicative of the gradual reduction of the more volatile fractions in the test item, was as anticipated based on the fact that the test item contains Tris(2-ethylhexylthioglycolate) methyl tin and ethylhexyl thioglycolate as impurities. To provide representative data for risk assessment of potential atmospheric emissions of the test item, the initial, highest value obtained was taken as the definitive result.
Reference
Description of key information
Vapor pressure 0.81 Pa at 25 deg C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.81 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure of the test item has been determined using the current OECD Guidelines for Testing, Guideline No. 104 (OECD, 2006).
The vapour pressure of the test item was determined to be 0.81 Pa at 25 °C. A slight, but gradual drop in vapour pressure was then observed on repeated temperature cycling of the test item over the range 20 to 30 °C (under vacuum), with individual values in the range 0.48 to 0.27 Pa for ten consecutive runs.
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