Registration Dossier
Registration Dossier
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EC number: 258-548-3 | CAS number: 53423-65-7
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:
- November 16 – December 11, 2017
- 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)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
- Specific details on test material used for the study:
- Composition: Benzenesulfonic acid, 2,4,5-trichloro-, sodium salt
Purity: 100%
CAS# 53423-65-7
EC# 258-548-3
Physical Description: White powder
Stability: Test substance was expected to be stable for the duration of testing.
Expiration Date: December 31, 2018 - Key result
- Surface tension:
- 71.2 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 000 mg/L
- Conclusions:
- The surface tension (OECD harmonized ring method) was determined to be 71.2 mN/m.
- Executive summary:
In this GLP guideline study conducted using the OECD harmonized ring method based on the procedures described in OECD Guidline 115 and E.U method A.5, the surface tension at a test concentration of 1000 mg/L at 20 deg. Celsius was determined to be 71.2 mN/m. Given this result, the suface tension of aqueous solutions is not expected to play a significant role in assessing environmental fate or aquatic toxicity of this substance.
Reference
SURFACE TENSION
Reading Number |
Repetition 1 |
Repetition 2 |
Repetition 3 |
|||
Temperature (ºC) |
Measured Surface Tension (mN/m) |
Temperature (ºC) |
Measured Surface Tension (mN/m) |
Temperature (ºC) |
Measured Surface Tension (mN/m) |
|
1 |
20.1 |
69.2 |
20.1 |
69.0 |
20.0 |
69.0 |
2 |
20.0 |
70.0 |
20.0 |
69.0 |
20.1 |
69.0 |
3 |
20.0 |
69.5 |
20.1 |
68.8 |
20.0 |
68.8 |
Average |
20.0 |
69.6 |
20.1 |
68.9 |
20.0 |
68.9 |
Standard Deviation |
0.1 |
0.4 |
0.1 |
0.1 |
0.1 |
0.1 |
Repetition Number |
Temperature (ºC) |
Measured Mean Surface Tension (mN/m) |
Φb-corrected Mean Surface Tension (mN/m) |
1 |
20.0 |
69.6 |
71.7 |
2 |
20.1 |
68.9 |
71.0 |
3 |
20.0 |
68.9 |
71.0 |
Average |
20.0 |
69.1 |
71.2 |
Standard Deviation |
0.1 |
0.4 |
0.4 |
Correction factor – 1.03
Description of key information
In a GLP guideline study conducted using the OECD harmonized ring method based on the procedures described in OECD Guidline 115 and E.U method A.5, the surface tension, at a test concentration of 1000 mg/L at 20 deg. Celsius, was determined to be 71.2 mN/m. Given this result, the suface tension of aqueous solutions is not expected to play a significant role in assessing environmental fate or aquatic toxicity of this substance.
Key value for chemical safety assessment
- Surface tension:
- 71.2
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
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