Registration Dossier
Registration Dossier
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: 201-114-5 | CAS number: 78-40-0
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because based on structure, surface activity is not expected or cannot be predicted
Reference
Description of key information
A waiver is proposed: According to REACh Annex VII / column 2, the study needs only to be conducted if based on structure , surface activity is expected or can be predicted.
Triethylphosphate does not contain chemical groups (such as distinct polar and non-polar parts) indicating that it will have surface-active properties in solution, and it is also not intended to be used as a surfactant.
Therefore testing is deemed unnecessary.
Key value for chemical safety assessment
Additional information
A supporting literature source (Daubert & Danner, 1989) provides a surface tension value of 38,2 mN/m, but test conditions, in particular concentration, are not specified. Therefore it was not assessed as valid, and could not be regarded as key study. Despite the high solubility of the substance (500 g/L), no extrapolation can be made on its surface-active potential, since in the worst case ST could have been measured on pure, which would not be comparable at all with the required concentration of 90% saturation, according to guideline criteria.
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.
