Registration Dossier
Registration Dossier
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EC number: 273-105-4 | CAS number: 68937-98-4 This substance is identified by SDA Substance Name: C14-C18 and C12-C20 unsaturated alkyl alkene and C14-C18 and C12-C20 unsaturated alkyl hydroxy sulfonic acid sodium salt and SDA Reporting Number: 03-059-04.
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:
- 05 December 2017 - 25 January 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- >= 36.5 - <= 37.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension at nominally 1 g/L of test item in water has been determined to be 37.0 ± 0.5 mN/m at 20.0 ± 0.5 ºC. The test item was considered to be surface-active.
Reference
Description of key information
The surface tension at nominally 1 g/L of test item in water has been determined to be 37.0 ± 0.5 mN/m at 20.0 ± 0.5 ºC. The test item was considered to be surface-active.
Key value for chemical safety assessment
- Surface tension:
- 37
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
A surface tension measurement determination was conducted as part of a package of physicochemical testing on Sulfonic acids, C14-18-alkane hydroxy and C12-20-alkapolyene and C14-18-alkene and C12-20-alkene hydroxy, sodium salts (Envigo Research Limited, 2018, Study GT32WD). The study was conducted in compliance with GLP and the surface tension measurement was performed according to procedure designed to be compatible with Method A5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
The surface tension of a 1 g/L aqueous solution of sulfonic acids, C14-18-alkane hydroxy and C12-20-alkapolyene and C14-18-alkene and C12-20-alkene hydroxy, sodium salts has been determined to be 37.0 ± 0.5 mN/m at 20.0 ± 0.5 ºC, using a ring method. The test item was considered to be surface-active
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