Registration Dossier
Registration Dossier
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EC number: 275-085-2 | CAS number: 70983-43-6
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 18 May 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- Regulation EC No. 440/2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
Test material
- Reference substance name:
- Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
- EC Number:
- 275-085-2
- EC Name:
- Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
- Cas Number:
- 70983-43-6
- Molecular formula:
- see structural formula below, for n=4 C13H24N2O3 HO.Na
- IUPAC Name:
- Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts
- Test material form:
- liquid
- Remarks:
- oily liquid
- Details on test material:
- Batch No.: 54542L16
Storage at room temperature, protected from light.
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- 31 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1.09 g/L
- Remarks on result:
- other: overall mean of first measurement (6 values measured) and second measurement (6 values measured) concentration refers to nominal concentration of the test item
Any other information on results incl. tables
The detailed results of two measurements are summarized in the table below.
| Value No. | First measurement; approx. 1 day after preparation of the solution (mN/m) | Second measurement; 30 min after the first measurement(mN/m) |
| 1 | 30.74 | 31.40 |
| 2 | 30.63 | 31.36 |
| 3 | 30.65 | 31.33 |
| 4 | 30.65 | 31.31 |
| 5 | 30.64 | 31.29 |
| 6 | 30.65 | 31.27 |
| Mean value of the individual values | 30.66 ± 0.04 | 31.33 ± 0.05 |
| Total mean value | 31.00 ± 0.47 | |
Applicant's summary and conclusion
- Conclusions:
- According to OECD Test Guideline 115 and Regulation EC No. 440/2008 Part A Method A.5. the surface tension at 20 °C of the test item Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts (CAS no. 70983-43-6) was determined to be: 31.00 mN/m. According to Regulation EC No. 440/2008 Part A Method A.5. the test item is regarded as surface active material.
- Executive summary:
According to OECD Test Guideline 115 and Regulation EC No. 440/2008 Part A Method A.5. the surface tension at 20 °C of the test item Imidazolium compounds, 2-C4-8-alkyl-1-(2-carboxyethyl)-4,5-dihydro-3-(hydroxyethyl), hydroxides, sodium salts (CAS no. 70983-43-6) was determined to be: 31.00 mN/m.
According to Regulation EC No. 440/2008 Part A Method A.5. the test item is regarded as surface active material.
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