Reaction products of Dihydro-3-(tetrapropenyl)furan-2,5 dione with propane-1,2,diol

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 January 2016 to 07 December 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

GLP compliance:

yes (incl. QA statement)

Type of method:

OECD harmonised ring method

Key result

Surface tension:

34.65 mN/m

Temp.:

20 °C

Conc.:

90 other: % saturated solution

- The mean surface tension of double-distilled water was measured to be 72.9 mN/m which gave a calibration factor of 72.75/72.9 = 0.9979.

- The mean surface tension of the 90 % saturated solution of the test material, at 20 °C, was 37.25 mN/m.

- Correcting for calibration gave a value of 37.25 × 0.9979 = 37.17 mN/m.

- As the corrected value was < 60 mN/m the Harkins-Jordan correction was also applied as follows:

Final corrected result = (37.17 × 1.06) – 4.75 =34.65 mN/m

Substances showing a surface tension of lower than 60 mN/m under the conditions of the method used are regarded as surface active.

Table 1: Surface Tension Study Results

Time after filling of test vessel	Surface tension reading (mN/m)
Calibration
6 minutes 30 seconds	71.2 (not used – system had not stabilised)
7 minutes 30 seconds	73.0
9 minutes	73.0
11 minutes	72.8
12 minutes 30 seconds	73.0
14 minutes	72.8
16 minutes	72.8
Mean	72.9
Calibration correction factor: Literature surface tension of water (72.75 mN/m) divided by mean measured value	0.9979
Surface tension of the test material
6 minutes 30 seconds	37.0 (not used – system had not stabilised)
8 minutes 30 seconds	40.0 (not used – system had not stabilised)
10 minutes 30 seconds	40.0 (not used – system had not stabilised)
13 minutes	35.8 (not used – system had not stabilised)
14 minutes 30 seconds	37.5
16 minutes	37.5
18 minutes	37.0
19 minutes 30 seconds	37.0
21 minutes	37.0
22 minutes 30 seconds	37.5
Mean	37.25
Mean corrected for calibration = 37.25 x 0.9979	37.17
Harkins-Jordan corrected value = (calibration corrected mean × 1.06) – 4.75	34.65

Conclusions:

Under the conditions of this study the surface tension of the test material was 34.65 mN/m. As the surface tension, after correction for calibration, was < 60 mN/m the test material was considered to be surface active.

Executive summary:

The surface tension of the test material was investigated in accordance with the standardised guideline OECD 115, under GLP conditions.

The surface tension of the 90 % saturated test material solution was measured by the harmonised ring method.

The mean surface tension of the 90 % saturated solution of the test material, at 20 °C, was 37.25 mN/m. Correcting for calibration gave a value of 32.25 × 0.9979 = 37.17 mN/m. As the corrected value was < 60 mN/m the Harkins-Jordan correction was also applied, (37.17 × 1.06) – 4.75 = 34.65 mN/m.

Under the conditions of this study, the surface tension of the test material was 34.65 mN/m. As the surface tension, after correction for calibration, was < 60 mN/m the test material was considered to be surface active.

Description of key information

Under the conditions of this study, the surface tension of the test material was 34.65 mN/m. As the surface tension, after correction for calibration, was < 60 mN/m the test material was considered to be surface active.

Key value for chemical safety assessment

Surface tension:

34.65

Additional information

The surface tension of the test material was investigated in accordance with the standardised guideline OECD 115, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The surface tension of the 90 % saturated test material solution was measured by the harmonised ring method.

The mean surface tension of the 90 % saturated solution of the test material, at 20 °C, was 37.25 mN/m. Correcting for calibration gave a value of 32.25 × 0.9979 = 37.17 mN/m. As the corrected value was < 60 mN/m the Harkins-Jordan correction was also applied, (37.17 × 1.06) – 4.75 = 34.65 mN/m.

Under the conditions of this study, the surface tension of the test material was 34.65 mN/m. As the surface tension, after correction for calibration, was < 60 mN/m the test material was considered to be surface active.