2-sec-butylphenol

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

29 June, 2009 - 6 August, 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study has been performed according to OECD and/or EC guidelines, and according to GLP principles.

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:

yes (incl. QA statement)

Type of method:

ring method

Surface tension:

47.4 mN/m

Temp.:

20 °C

Conc.:

1 g/L

The results of the test on the determination of the surface tension of the test solution are given in the table 8:

Table 8: Surface tension of the test substance

Measurement	Time passed (minutes)	Surface tension (mN/m)
		individual	mean	Mean multiplied byΦband Harkins-Jordan corrected value
1	16	47.4	47.5	47.4
2	17	47.5
3	18	47.7
4	19	47.4
5	20	47.3

Conclusions:

The OECD harmonized ring method was used for the determination of the surface tension of 2-sec-butylphenol. The surface tension of a test solution at a concentration of 1 g/l at 20.0°C was 47.4 mN/m. According to this, the test substance is considered to be surface active.

Executive summary:

The surface tension of 2 -sec-butylphenol was determined by the ring method. The method followed the OECD Guideline 115 (Surface Tension of Aqueous Solutions) and EU Method A. 5 (Surface tension). Five measurements were performed until a constant value on the surface tension was reached (< 0.5 mN/m).

The surface tension of a test solution at a concentration of 1 g/l at 20.0°C was 47.4 mN/m. According to this, the test substance is considered to be surface active.

Description of key information

surface tension: 47.4 mN/m at 20.0°C at a concentration of 1 g/l

Key value for chemical safety assessment

Surface tension:

47.4

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

1 000

Additional information

The surface tension of 2 -sec-butylphenol was determined by the ring method. The method followed the OECD Guideline 115 (Surface Tension of Aqueous Solutions) and EU Method A. 5 (Surface tension).Five measurements were performed until a constant value on the surface tension was reached (< 0.5 mN/m).

The surface tension of a test solution at a concentration of 1 g/l at 20.0°C was 47.4 mN/m. According to this, the test substance is considered to be surface active.