Registration Dossier
Registration Dossier
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EC number: 948-935-1 | CAS number: -
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 18 December 2018 to 05 April 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- Benzenesulfonic acid, C10-24-branched and linear alkyl derivs., magnesium salts, overbased
- EC Number:
- 948-935-1
- Molecular formula:
- Molecular formula cannot be determined for this UVCB substance
- IUPAC Name:
- Benzenesulfonic acid, C10-24-branched and linear alkyl derivs., magnesium salts, overbased
- Test material form:
- liquid: viscous
- Details on test material:
- Batch (Lot) Number: R18 14728
Expiry date: 08 October 2020 (expiry date)
Physical Description: Dark amber viscous liquid
Purity/Composition: UVCB
Storage Conditions: At room temperature
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 70.6 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: Conc.= 90% saturation in water
Any other information on results incl. tables
Table: Surface tension measurements
Measurement |
Time passed after measurement start |
Surface tension |
|
individual σ multiplied by Harkins-Jordan corrected value |
mean σ
|
||
1 |
41.49 |
70.71 |
70.63 |
2 |
68.44 |
70.63 |
|
3 |
94.60 |
70.61 |
|
4 |
121.23 |
70.60 |
|
5 |
148.11 |
70.60 |
|
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous substance solution at 90% saturation was determined to be 70.6 mN/m (at 20°C).
- Executive summary:
The OECD harmonized ring method was used in a GLP study based on EC A.5 and OECD 115. The surface tension of an aqueous substance solution at 90% saturation was determined to be 70.6 mN/m (at 20°C). According to EC A.5 the substance is not surface active.
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