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: 433-730-7 | CAS number: 23926-51-4 L-THREONINETHYLESTER
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2007.08.31 to 2007.11.29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study performed in accordance with recognized test guideline.
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- (Platinium ring)
- Principles of method if other than guideline:
- NA
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
- Surface tension:
- 71.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 044 mg/L
- Conclusions:
- The surface tension at 20°C of a nominal 1 g/L solution of L-TEE in double-destilled water was determined to be 71.5 mN/m. L-TEE is not a surface active substance.
- Executive summary:
The surface tension of L-TEE was measured in accordance with Directive 92/69/EEC method A5 and OECD Guideline 115 (platinium ring).
The apparatus used, White Instruments Surface Tension (torsion) Balance, was calibrated using double-distilled water. The calibration factor was determined to be 1.000.
The mean surface tension was measured to be 71.5 mN/m for a test solution of 1 g/L at 20°C. As the value is significantly above 60 mN/m, correction using the Harkins-Jordan correction table was not necessary.
Reference
The apparatus was calibrated with double-distilled water. The surface tension of the water was measured to be 72.75 mN/m at 20°C and as the literature value for this temperature is 72.75 the calibration factor is 1.000.
The surface tension of L-TEE was calculated as a mean value of 5 readings. The mean surface tension was calculated to be 71.5 mN/m for a test solution of 1 g/L at 20°C. As the value is significantly above 60 mN/m, correction using the Harkins-Jordan correction table was not necessary.
Description of key information
The surface tension of L-TEE is 71.5 mN/m for a 1 g/L at 20°C.
Key value for chemical safety assessment
- Surface tension:
- 71.5
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The surface tension of L-TEE was measured in accordance to Directive 92/69/EEC Method A5 and OECD Guideline 115 (platinium ring).
The apparatus used, White Instruments Surface Tension (torsion) Balance, was calibrated using double-distilled water. The calibration factor was determined to be 1.000.
The mean surface tension was measured to be 71.5 mN/n for a test substance concentration of 1 g/L at 20°C. As the value is significantly above 60 mN/m, correction using the Harkins-Jordan correction table was not necessary.
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.
