Registration Dossier
Registration Dossier
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EC number: 700-956-5 | CAS number: -
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Data waiving:
- other justification
- Justification for data waiving:
- other:
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
In accordance with REACH Regulation (EC) No. 1907/2006 Annex VII, column 2 section 7.6 the study need only to be conducted if based on structure: surface activity is expected or can be predicted. The substance constituents that are soluble > 1 mg/L are not predicted to be surface active at 20°C. The applicant is aware of measured data on those constituents and structural analogues agreeing with this conclusion. Other constituents within the substance that have the potential for surface activity are not soluble in water > 1 mg/L at 20°C. Since the constituents in question are outside the solubility limits of the applicable guidelines their contribution to the substance surface activity within the test method is questionable. Expert assessment indicates that these constituents would not be expected to be solubilised sufficiently at 90% saturation relative to the non-surface active constituents; in order to yield a positive result for surface activity (surface tension < 60 mN/m). This conclusion is confirmed by measured data within partition coefficient and water solubility endpoints. According to ECHA Guidance on Information Requirements and Chemical Safety Assessment (Chapter R.7a: Endpoint Specific Guidance, R.7.1.6, July 2017) the study does not need to be conducted.
Reference
Description of key information
Surface Tension: Substance not surface active based on structural assessment, 2018
Key value for chemical safety assessment
Additional information
In accordance with REACH Regulation (EC) No. 1907/2006 Annex VII, column 2 section 7.6 the study need only to be conducted if based on structure: surface activity is expected or can be predicted. The substance constituents that are soluble > 1 mg/L are not predicted to be surface active at 20°C. The applicant is aware of measured data on those constituents and structural analogues agreeing with this conclusion. Other constituents within the substance that have the potential for surface activity are not soluble in water > 1 mg/L at 20°C. Since the constituents in question are outside the solubility limits of the applicable guidelines their contribution to the substance surface activity within the test method is questionable. Expert assessment indicates that these constituents would not be expected to be solubilised sufficiently at 90% saturation relative to the non-surface active constituents; in order to yield a positive result for surface activity (surface tension < 60 mN/m). This conclusion is confirmed by measured data within partition coefficient and water solubility endpoints. According to ECHA Guidance on Information Requirements and Chemical Safety Assessment (Chapter R.7a: Endpoint Specific Guidance, R.7.1.6, July 2017) the study does not need to be conducted.
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.
