4,6-dimethyl-2-(1-phenylethyl)-3,6-dihydro-2H-pyran

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Apr 28, 2017 - Aug 22, 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)

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

GLP compliance:

yes

Type of method:

ring method

Key result

Surface tension:

65.14 mN/m

Temp.:

20 °C

Conc.:

1 g/L

TABLE 1: Calibration Data and Correction Factor

 

Replication	Literature Value (so) of Surface Tension of Water (at 20 °C) [mN/m]	Force (sg) required to Detach the Ring from the Surface of the Water (at 20 °C) [mN/m]	Correction Factor Φb=so/sg
R1	72.75	70.5	1.03
R2		70.4	1.03
R3		71.0	1.02
R4		70.6	1.03
R5		70.4	1.03
Mean			1.03
Standard Deviation			0.004

TABLE 2: Calculation of Surface Tension

 

Replication	Force (F) Required to Detach the Ring from the Surface of the Sample Solution (at 20 °C) [mN/m ]	Correction Factor* Φb	Corrected Surface Tension at 20 °C s= Φbx F [mN/m]
R1	63.2	1.03	65.10
R2	63.0		64.89
R3	63.4		65.30
R4	63.5		65.41
R5	63.1		64.99
Mean			65.14
Standard Deviation			0.22

* TABLE 1

Conclusions:

The mean surface tension of 1 g/L aqueous solution of FRET 12-0492 measured after 10 minutes of its preparation was 65.14 ± 0.38 mN/m at 20 °C.

Executive summary:

The mean surface tension of 1 g/L aqueous solution of FRET 12-0492 measured after 10 minutes of its preparation was 65.14 ± 0.38 mN/m at 20 °C.

Description of key information

The mean surface tension of 1 g/L aqueous solution of FRET 12-0492 measured after 10 minutes of its preparation was 65.14 ± 0.38 mN/m at 20 °C.

Key value for chemical safety assessment

Surface tension:

65.14

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

1