Registration Dossier

Physical & Chemical properties

Surface tension

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
yes
Remarks:
The emasurement was performed at 25 °C instead of approximately 20 °C indicated in the guideline.
GLP compliance:
no
Type of method:
ring method
Surface tension:
39.4 mN/m
Temp.:
25 °C
Conc.:
183 mg/L

Measurement 1

Time [s]

Force [mN]

Mass [g]

Lamella [mm]

SFT [mN/m]

Avg. [mN/m]

Dev. [mN/m]

Temp. [°C]

35.48

5.59175

0.57020

2.860

42.04877

--

--

24.95

67.41

5.49731

0.56057

2.879

41.28514

--

--

24.96

100.50

5.42582

0.55328

2.851

40.70779

--

--

24.95

132.74

5.38120

0.54873

2.882

40.34777

--

--

24.96

166.02

5.34708

0.54525

2.875

40.07257

40.892

0.789660

24.95

199.36

5.32442

0.54294

2.860

39.88999

40-461

0.554495

24.95

232.44

5.30648

0.54111

2.851

39.74538

40.153

0.383249

24.94

265.66

5.28981

0.53941

2.851

39.61109

39.933

0.288178

24.96

297.57

5.27578

0.53798

2.884

39.49815

39.763

0.226656

24.97

330-36

5.26431

0.53681

2.881

39.40577

39.630

0.192955

24.96

Measurement 2

Time [s]

Force [mN]

Mass [g]

Lamella [mm]

SFT [mN/m]

Avg. [mN/m]

Dev. [mN/m]

Temp. [°C]

35.66

5.48829

0.55965

2.721

41.21224

--

--

24.96

67.28

5.39974

0.55062

2.764

40.49728

--

--

24.95

99.63

5.34080

0.54461

2.779

40.02198

--

--

24.96

132.54

5.30157

0.54061

2.793

39.70588

--

--

24.95

165.86

5.27215

0.53761

2.764

39.46894

40.181

0.693100

24.96

197.56

5.25225

0.53558

2.827

39.30866

39.801

0.473115

24.96

230.70

5.23763

0.53409

2.808

39.19106

39.539

0.331717

24.96

262.96

5.22194

0.53249

2.803

39.06480

39.348

0.249541

24.96

295.81

5.20870

0.53114

2.810

38.95830

39.198

0.200561

24.97

328.59

5.19635

0.52988

2.789

38.85891

39.076

0.179218

24.95

Conclusions:
The surface tension of the substance was determined to be 39.4 mN/m at 25 °C
Executive summary:

The surface tension of the substance was determined according to OECD guideline 115 using the ring method. At 25 °C the surface tension was determined to be 39.4 (+/- 0.28) mN/m.

Description of key information

39.4 (± 0.28) mN/m at 25°C and 183 ± 0.1 mg/L; OECD Guideline 115; RL1; no GLP

Key value for chemical safety assessment

Surface tension:
39.4
in mN/m at 20°C and concentration in mg/L:
183

Additional information

The surface tension of the substance was determined according to OECD guideline 115 using the ring method. At 25 °C the surface tension was determined to be 39.4 (± 0.28) mN/m.