Registration Dossier
Registration Dossier
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EC number: 215-657-0 | CAS number: 1338-02-9
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:
- 2018-05-07 to 2018-05-08
- 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)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2017-02-28
- Type of method:
- ring method
- Specific details on test material used for the study:
- Storage conditions: -15 °C to 40 °C
- Surface tension:
- 63.19 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 vol%
- Remarks on result:
- other: 90 % saturated solution
- 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 test item copper naphthenate was determined to be: σ = 63.2 mN/m. Thus, the test item is not to be regarded as surface active material.
Reference
The test item has a mean surface tension of 63.2 mN/m. Thus, the test item is not to be regarded as surface active.
Measured surface tension values
Value No. |
1st Measurement (3 min after preparing the solution) |
2nd Measurement (20 min after preparing the solution) |
1 |
63.64 |
62.89 |
2 |
63.61 |
62.85 |
3 |
63.57 |
62.83 |
4 |
63.55 |
62.79 |
5 |
63.53 |
62.78 |
6 |
63.51 |
62.76 |
Mean value of the individual values |
63.57 ± 0.05 |
62.82 ± 0.05 |
Total mean value |
63.19 ± 0.53 |
|
Description of key information
According to OECD Test Guideline 115 and Regulation EC No. 440/2008 Part A Method A.5 the surface tension at 20 °C of test item copper naphthenate was determined to be:
σ = 63.2 mN/m.
The test item is not to be regarded as surface active material.
Key value for chemical safety assessment
Additional information
The test item (101.48 mg) was dissolved in 100 mL double distilled water and stirred overnight for 24 hours to create an oversaturated solution. Subsequently 90 mL of the aqueous phase were diluted to 100 mL with double distilled water to create a solution with a concentration of about 90 % of the solubility. The concentration in mg/L of the solution was not determined.
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