Registration Dossier
Registration Dossier
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EC number: 604-045-2 | CAS number: 137862-53-4
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:
- Dec 1995 - Jan 1996
- 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)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes
- Type of method:
- ring method
- Key result
- Surface tension:
- 64.1 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 vol%
- Conclusions:
- The surface tension of CGP 48933 Step 9 in water was determined to be 64.1 mN/m at 20.0 °C ± 0.5 °C.
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Dec 1996
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 304 ("Surface active agents - Determination of Surface Tension by Drawing up Liquid Films")
- GLP compliance:
- yes
- Type of method:
- plate method
- Key result
- Surface tension:
- >= 59.6 - <= 60.1 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.1 g/L
- Key result
- Surface tension:
- >= 66.3 - <= 68.1 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.01 g/L
- Conclusions:
- Surface tension at 20.°C:
- filtrates of 0.1 g/L suspensions is 59.6 - 60.1 mN/m
- filtrates of 0.01 g/L suspensions is 66.3 - 68.1 mN/m - Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 17 December 2018 to 11 January 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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
- Specific details on test material used for the study:
- water solubility: not specified
- Key result
- Surface tension:
- 51.23 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: Conc.= 90% saturation in water
- Conclusions:
- The surface tension of an aqueous substance solution at 90% saturation was determined to be 51.23 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 51.23 mN/m (at 20°C). According to EC A.5 the substance is surface active.
Referenceopen allclose all
Table: Surface tension measurements
Measurement |
Time passed after measurement start |
Surface tension |
|
individual σ multiplied by Harkins-Jordan corrected value |
mean
|
||
1 |
39.39 |
51.32 |
51.23 |
2 |
65.15 |
51.21 |
|
3 |
91.74 |
51.21 |
|
4 |
117.35 |
51.22 |
|
5 |
142.91 |
51.19 |
|
Description of key information
The surface tension of an aqueous substance solution at 90% saturation was determined to be 51.23 mN/m (at 20°C).
Surface tension at 20.°C:
- filtrates of 0.1 g/L suspensions is 59.6 - 60.1 mN/m
- filtrates of 0.01 g/L suspensions is 66.3 - 68.1 mN/m
Key value for chemical safety assessment
- Surface tension:
- 60
- in mN/m at 20°C and concentration in mg/L:
- 100
Additional information
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