Registration Dossier
Registration Dossier
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EC number: 619-020-1 | CAS number: 94361-06-5
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:
- 26 May 1999 to 27 May 1999
- 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:
- 27 Jul 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 29 Dec 1992
- 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:
- 62.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 vol%
- Remarks on result:
- other: For measurements a 90% of a 140 mg/L saturated solutions is 126 mg/L solution was used
- Conclusions:
- The surface tension of duplicate 90 % saturated solution of test substance in water has been determined to be in the range 62.5 mN/m at 20.0 ± 0.2 °C.
- Executive summary:
The surface tension of the test substance has been determined using the ring method in accordance with OECD TG 115 and EU Method A.5 in compliance with GLP. The average surface tension of duplicate 90 % saturated solution of the test substance in water has been determined at 62.5 mN/m at 20.0 ± 0.2 °C.
Reference
RESULT
Determination of the correction factor Φb
A correction factor of 0.9939 was found. All instrument readings were multiplied by this value to obtain the actual surface tension σcorr.
Table 2: Surface tension by the Wilhelmy plate method at temperature: 20.0 ± 0.2 °C
Solution. time (min) |
01T(1) |
01T(2) |
0 |
64.0 |
66.4 |
1 |
64.0 |
66.4 |
5 |
64.0 |
66.4 |
10 |
63.9 |
66.3 |
Average |
64.0 |
66.4 |
Average of independent measurements |
65.2 |
|
Description of key information
62.5 mN/m at 20.0 ± 0.2 °C, OECD TG 115 plate method and EU Method A.5, Martin 1999.
Key value for chemical safety assessment
- Surface tension:
- 62.5
- in mN/m at 20°C and concentration in mg/L:
- 126
Additional information
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