Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 939-616-8 | CAS number: 68391-03-7
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Study period:
- From 15 March, 2012 to 20 March, 2012
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- KL2 due to RA
- Justification for type of information:
- Refer to the Quaternary ammonium salts (QAS) category or section 13 of IUCLID for details on the category justification.
- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- effusion method: isothermal thermogravimetry
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.002 Pa
- Remarks on result:
- other: (i.e., equivalent to < 1.1 x 10-5 mm Hg)
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.006
- Remarks on result:
- other: (i.e., equivalent to < 4.3 x 10-5 mm Hg)
- Conclusions:
- Based on the results of the read across study, the vapour pressure of the test substance is considered to be <0.0015 Pa (i.e., equivalent to <1.1 x 10E-5 mm Hg) at 20°C and <0.0058 Pa (i.e., equivalent to <4.3 x 10E-5 mm Hg) at 25°C.
- Executive summary:
A study was conducted to determine the vapour pressure of the read across substance, Coco TMAC (98.4% active) by isothermal thermogravimetry (effusion method), according to OECD 104, EU Method A.4 and EPA OPPTS 830.7950 Guidelines, in compliance with GLP. Under the conditions of the study, the vapour pressure was determined to be <0.0015 Pa (i.e., equivalent to <1.1 x 10E-5 mm Hg) at 20°C and <0.0058 Pa (i.e., equivalent to <4.3 x 10E-5 mm Hg) at 25°C (Brekelmans, 2012). Based on the results of the read across study, the vapour pressure of the test substance is expected to be in same range.
Reference
Description of key information
The vapour pressure of the read across substance, Coco TMAC was determined using the effusion method (isothermal thermogravimetry) according to OECD Guideline 104 and EU Method A.4 and/or EPA OPPTS 830.7950 (Brekelmans, 2012).
Key value for chemical safety assessment
- Vapour pressure:
- 0.006 Pa
- at the temperature of:
- 25 °C
Additional information
VP <0.0015 Pa at 20°C.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
