Registration Dossier
Registration Dossier
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EC number: 228-412-8 | CAS number: 6262-07-3
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:
- 29.06.2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: isothermal thermogravimetry
- Specific details on test material used for the study:
- .
- Key result
- Remarks on result:
- not determinable
- Remarks:
- Vapour pressure of the test substance, Acid Black 26, could not be determined under test conditions (temperature range from 190°C to 220°C).The higher temperature could not be used because of the thermal decomposition of the test substance.
- Key result
- Transition / decomposition:
- yes
- Transition temp.:
- 280 °C
- Remarks on result:
- not determinable
- Conclusions:
- Vapour pressure of the test substance, Acid Black 26, could not be determined under test conditions (temperature range from 190°C to 220°C).The higher temperature could not be used because of the thermal decomposition of the test substance.
- Executive summary:
The vapour pressure of the test substance, Acid Black 26 was investigated. The isothermal thermogravimetry effusion method was used.
The procedures used in the study were in accordance with:
Method A.4 Vapour Pressure, 1.5.6. Effusion method: isothermal thermogravimetry, Commission Regulation (EC) No 761/2009 Anex 1, Published in O.J. L 220, 2009
OECD Test Guideline No.104, page 9 Effusion method: isothermal thermogravimetry, Adopted23 March 2006
Vapour pressure of the test substance, Acid Black 26, could not be determined under test conditions (temperature range from 190°C to 220°C).
The higher temperature could not be used because of the thermal decomposition of the test substance.
Reference
At the first part of the test, from 25°C to 180°C, the loss of weight was 7.45%, what corresponds to the water content determined by Karl Fisher method.
At the second part of the test, from 190°C to 220°C, no significant loss of weight was recorded. There was no trend in the weight loss.
The higher temperature could not be used because the rapid decomposition of the test substance was observed above 280°C, but the gradual thermal decomposition started at the lower temperature (approximately 230°C).
Description of key information
Vapour pressure of the test substance, Acid Black 26, could not be determined under test conditions (temperature range from 190°C to 220°C). The higher temperature could not be used because of the thermal decomposition of the test substance.
QSAR: vapour pressure: 2.33 × 10 e-29 Pa (25°C; program MPBPVP ver. 1.43, modified Grain method)
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
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