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EC number: 700-208-8 | CAS number: -
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:
- 2009-01-13 - 2009-03-10
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The GLP study was conducted according to an internationally accepted guideline. All study parameters are based on the specific guideline.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- yes
- Remarks:
- The volumetric flask was cleaned with acetone, deionised water and water for HPLC purposes, but not with isopropanole.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- plate method
- Surface tension:
- 68.91 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of N-[(3(5)-Methyl-1 H-pyrazol-1 -yl)-methyl]acetamide was determined according to OECD Guideline 115 (Surface Tension of Aqueous Solutions).
During a certain period of time, no significant changes in the surface tension were detected. In dependence on time and temperature, values between 68.91 and 66.27 mN/m were recorded showing no significant variations. As the determined surface tension of the test item was higher than 60 mN/m, the test item is classified as not surface active. - Executive summary:
The surface tension of N-[(3(5)-Methyl-1 H-pyrazol-1 -yl)-methyl]acetamide was determined according to OECD Guideline 115 (Surface Tension of Aqueous Solutions).
During a certain period of time, no significant changes in the surface tension were detected. In dependence on time and temperature, values between 68.91 and 66.27 mN/m were recorded showing no significant variations. As the determined surface tension of the test item was higher than 60 mN/m, the test item is classified as not surface active.
Reference
Measurement |
Time |
Mass |
Surface Tension |
Temperature |
No |
s |
g |
mN/m |
°C |
1 |
3.00 |
0.2838 |
69.23 |
20.0 |
2 |
5.90 |
0.2825 |
68.91 |
20.0 |
3 |
8.90 |
0.2826 |
68.94 |
20.0 |
4 |
11.90 |
0.2824 |
68.89 |
20.0 |
5 |
14.90 |
0.2824 |
68.89 |
20.0 |
6 |
17.90 |
0.2824 |
68.89 |
20.0 |
7 |
20.90 |
0.2823 |
68.87 |
20.0 |
8 |
23.90 |
0.2823 |
68.87 |
20.0 |
9 |
26.90 |
0.2821 |
68.82 |
20.0 |
10 |
29.90 |
0.2822 |
68.84 |
20.0 |
Mean |
68.91 |
|
||
Standard Deviation |
0.12 |
|
||
Measurement |
Time |
Mass |
Surface Tension |
Temperature |
No |
s |
g |
mN/m |
°C |
1 |
2.9 |
0.2711 |
66.13 |
20.0 |
2 |
5.9 |
0.2718 |
66.30 |
20.0 |
3 |
8.8 |
0.2718 |
66.30 |
20.0 |
4 |
11.9 |
0.2717 |
66.28 |
20.0 |
5 |
14.9 |
0.2717 |
66.28 |
20.0 |
6 |
17.8 |
0.2714 |
66.21 |
20.0 |
7 |
20.9 |
0.2725 |
66.48 |
20.0 |
8 |
23.9 |
0.2712 |
66.16 |
20.0 |
9 |
26.9 |
0.2724 |
66.45 |
20.0 |
10 |
29.9 |
0.2710 |
66.11 |
20.1 |
Mean |
66.27 |
|
||
Standard Deviation |
0.12 |
|
||
Description of key information
The surface tension of N-[(3(5)-Methyl-1 H-pyrazol-1 -yl)-methyl]acetamide was determined according to OECD Guideline 115 (Surface Tension of Aqueous Solutions).
During a certain period of time, no significant changes in the surface tension were detected. In dependence on time and temperature, values between 68.91 and 66.27 mN/m were recorded showing no significant variations. As the determined surface tension of the test item was higher than 60 mN/m, the test item is classified as not surface active.
Key value for chemical safety assessment
- Surface tension:
- 68.91
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The surface tension of N-[(3(5)-Methyl-1 H-pyrazol-1 -yl)-methyl]acetamide was determined as 68.91 mN/m.
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