Registration Dossier
Registration Dossier
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EC number: 605-140-1 | CAS number: 158237-07-1
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:
- Feb 22 1995 - May 6 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:
- other: tensiometer
- Surface tension:
- 66 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1.8 mg/L
- Surface tension:
- 69 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.7 mg/L
Reference
Calibration with water
recorder signal: 95.4, 95.1, 95.0
calibration factor f: 0.7626, 0.7650, 0.7658
mean: 0.7645
relative standard deviation: 0.18
|
Test No. 1 |
Test No. 2 |
Test No. 3 |
|
|
|
|
measured concentration of test item |
1.8 mg/L |
0.7 mg/L |
1.0 mg/L |
1st measurement recorder signal Surface tension experimental |
86.7 66.28 mN/m |
90.0 68.80 mN/m |
88.7 67.81 mN/m |
2nd measurement recorder signal Surface tension experimental |
86.6 66.21 mN/m |
90.0 68.80 mN/m |
88.7 67.81 mN/m |
3rd measurement recorder signal Surface tension experimental |
86.4 66.05 mN/m |
89.9 68.73 mN/m |
88.7 67.81 mN/m |
mean standard deviation Surface tension corrected |
66.1 8 mN/m 0.095 65.7 mN/m |
68.78 mN/m 0.036 68.6 mN/m |
67.81 mN/m 0.0 67.5 mN/m |
Description of key information
Surface tension (OECD Guideline 115, tensiometer):
66 mN/m at 20 °C, 1.8 mg/L of test substance in water
69 mN/m at 20 °C, 0.7 mg/L of test substance in water
Key value for chemical safety assessment
- Surface tension:
- 66
- in mN/m at 20°C and concentration in mg/L:
- 1.8
Additional information
Due to technical issues during the test, the final concentrations of test item were lower than the expected 90% of saturation (equal to 2.25 mg/L). The surface tension at the nearest reached concentration (1.8 mg/L) is used as key value for the CSA.
The test substance is non-surface active.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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