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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 947-449-7 | CAS number: -
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:
- 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Data from STN database (Germany)
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The test substance contains more than 70% of the moisture content so the vapour pressure measurements according to dynamic method (OECD 104) and estimations method according to grain watson (OECD 104) not suitable for samples containing greater than 1% and 10% water. Since there is obviously no reliable measurement method available to determine the VP of the test substance, the VP of the corresponding alkanolamine shall be used as worse-case assumption, since VP of the salt will never exceed the one of the corresponding alkanolamine.
- GLP compliance:
- not specified
- Type of method:
- other: Not specified
- Key result
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0.001 Pa
- Remarks on result:
- other: vapour pressure assessment based on the corresponding alkanolamine
- Conclusions:
- Based on the identified VP value for the the alkanolamine, 2,2',2''-nitrilotriethanol (TEA), the VP value of the test substance was considered to be 0.001117 Pa at 25˚C.
- Executive summary:
The test substance contains more than 70% of the moisture content so the vapour pressure measurements according to dynamic method (OECD 104) and estimations method according to grain watson (OECD 104) not suitable for samples containing greater than 1% and 10% water. Since there is obviously no reliable measurement method available to determine the VP of the test substance, the VP of the corresponding alkanolamine shall be used as worse-case assumption, since VP of the salt will never exceed the one of the corresponding alkanolamine. Based on the identified VP value for the the alkanolamine, 2,2',2''-nitrilotriethanol (TEA), the VP value of the test substance was considered to be 0.001117 Pa at 25˚C (Dobbelstein, 2017).
Reference
Description of key information
The vapour pressure was determined based on the vapour pressure of the counter-ion alkanolamine (Dobbelstein, 2017).
Key value for chemical safety assessment
- Vapour pressure:
- 0.001 Pa
- at the temperature of:
- 25 °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.
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.
