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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 701-475-3 | CAS number: -
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Justification for type of information:
- At liquid–air interfaces, surface tension results from the greater attraction of liquid molecules to each other (due to cohesion) than to the molecules in the air (due to adhesion). Thus, the surface becomes under tension from the imbalanced forces. All lithium borate substances in this category are expected to have the same surface tension properties since they contain the same functional groups and once dissolved in water will dissociate to boric acid and lithium ions. The surface tension measured will therefore be the result of the interactions of the liquid molecules with boric acid and lithium ions. As a result, all lithium borate substances will have the same surface tension value to report. Read-across to the result for dilithium tetraborate is therefore proposed for all lithium borate substances in this category.
- Key result
- Surface tension:
- 63.4 - <= 71.6 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of the UVCB-Reaction products of boric acid and lithium hydroxide is 63.4-71.6 mN/m (read-across from dilithium tetraborate).
- Executive summary:
All lithium borate substances in this category are expected to have the same surface tension properties since they contain the same functional groups and once dissolved in water will dissociate to boric acid and lithium ions. The surface tension measured will therefore be the result of the interactions of the liquid molecules with boric acid and lithium ions.
The surface tension of dilithium tetraborate was determined to be 63.4 -71.6 mN/m using the ring method in accordance with EU Method A5. The surface tension of the UVCB-Reaction products of boric acid and lithium hydroxide will also be reported as the same value.
Reference
Description of key information
The surface tension of dilithium tetraborate was determined to be 63.4 -71.6 mN/m using the ring method in accordance with EU Method A5. Read-across to dilithium tetraborate is proposed so therefore the surface tension of the UVCB-Reaction products of boric acid and lithium hydroxide will also be reported as 63.4 -71.6 mN/m.
Key value for chemical safety assessment
- Surface tension:
- 71.6
- in mN/m at 20°C and concentration in mg/L:
- 1 000
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.
