trans-2-(4-Bromo-3-fluorophenyl)-5-butyl-[1,3]dioxane

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 2018-10-30 to 2019-01-28

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:

no

Type of method:

ring method

Key result

Surface tension:

72.2 mN/m

Temp.:

20 °C

Conc.:

90 vol%

Remarks on result:

other: conc. of 90% solution: 1.08 mg/L

The test item has a water solubility of 1.04 mg/L. Therefore, 1 .2 mg of the test item were put into 1000 mL of demineralized water and stirred at ambient temperature for approx. 21 h. The test item was not completely dissolved after the stirring period. Therefore, the solution was filtered and diluted to 90 %. After adapting to 20 °C the measurement of the surface tension with the test item was carried out at 20 ± 0.5 °C (20.2 °C).

Table 1. Surface tension

Measurement	1	2	3	4	5	6
Time (s)	24	144	264	386	508	630
σ (mN/m) uncorrected	77.73	77.69	77.69	77.71	77.70	77.71
σ (mN/m) corrected according to Zuidema and Waters	72.23	72.19	72.19	72.20	72.20	72.21

Mean value: σ = 72.2 mN/m (corrected according to Zuidema and Waters – Zuidema, H., Waters, C.W., Ind. Eng. Chem. Analyt. 13 (1941), S. 312).

The aqueous solution of the test item had a mean surface tension of 72.2 mN/m. As the surface tension was higher than 60 mN/m, the test item had no surface-active properties.

Conclusions:

The surface tension of the aqueous solution at 20 °C had a mean value of 72.2 mN/m. The test item had no surface-active properties.

Executive summary:

A study was conducted according to OECD TG 115 and Regulation (EC) No 440/2005 Method A.5 to determine the surface tension of an aqueous solution of the test item using the ring method. The test item has a water solubility of 1.04 mg/L. Therefore, 1.2 mg of the test item were put into 1000 mL of demineralized water and stirred at ambient temperature for approx. 21 h. The test item was not completely dissolved after the stirring period. Therefore, the solution was filtered and diluted to 90 %. After adapting to 20 °C the measurement of the surface tension with the test item was carried out at 20.2 °C. The aqueous solution of the test item had a mean surface tension of 72.2 mN/m. As the surface tension was higher than 60 mN/m, the test item had no surface-active properties.

Description of key information

The surface tension of the aqueous solution at 20 °C had a mean value of 72.2 mN/m. The test item had no surface-active properties.

Key value for chemical safety assessment

Surface tension:

72.2

in mN/m at 20°C and concentration in mg/L:

1.08

Additional information

A study was conducted according to OECD TG 115 and Regulation (EC) No 440/2005 Method A.5 to determine the surface tension of an aqueous solution of the test item using the ring method (reference 4.10-1). The test item has a water solubility of 1.04 mg/L. Therefore, 1.2 mg of the test item were put into 1000 mL of demineralized water and stirred at ambient temperature for approx. 21 h. The test item was not completely dissolved after the stirring period. Therefore, the solution was filtered and diluted to 90 %. After adapting to 20 °C the measurement of the surface tension with the test item was carried out at 20.2 °C. The aqueous solution of the test item had a mean surface tension of 72.2 mN/m. As the surface tension was higher than 60 mN/m, the test item had no surface-active properties.