Registration Dossier
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EC number: 222-048-3 | CAS number: 3327-22-8
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:
- 1997-11-03 to 1997-12-15
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- Directive 92/69/EEC, A.4.
- Deviations:
- not specified
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- 20 °C
- Vapour pressure:
- < 0 hPa
- Remarks on result:
- other: temperature range between 20 and 150 °C
- Conclusions:
- A vapour pressure value of lower than 0.00001 hPa was determined between 20 and 150 °C in a reliable study conducted according to EU method A.4.
- Executive summary:
The vapour pressure of the test item was determined according to EU method A.4. and is 0.00001 hPa in the temperature range between 20 and 150 °C. No increase in weight was registered on the balance within this temperature range and therefore no increase in vapour pressure could be detected.
Reference
Precautionary a Different Scanning Calorimetry was done. The test substance shows an endothermic effect beginning at 160°C and an exothermic decomposition after.
In the temperature range between 19.8 °C and 150.4 °C no increase in weight and therefore no vapour pressure of the test substance was registered with the balance.
Description of key information
The test item has a vapour pressure of lower than 0.00001 hPa between 20 and 150 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 0 hPa
- at the temperature of:
- 20 °C
Additional information
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