2-(2-heptadec-8-enyl-2-imidazolin-1-yl)ethanol

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2009

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)

GLP compliance:

no

Type of method:

ring method

Key result

Surface tension:

28.4 mN/m

Temp.:

20 °C

Conc.:

90 vol%

Reference measurement with purified water

Mean value: 70.6mN/m

Standard deviation: 0.05mN/m

For calculation of mean value and standard deviation only the values of constant measurements obtained between 1300s up to end of run were considered.

Preparation of test item, 1st run

Mean value: 28.4mN/m

Standard deviation: 0.08mN/m

For calculation of mean value and standard deviation only the values of constant measurements obtained between 3900s up to end of run were considered.

Preparation of test item, 2nd run

Mean value: 28.4mN/m

Standard deviation: 0.06mN/m

For calculation of mean value and standard deviation only the values of constant measurements obtained between 2300s up to end of run were considered.

The surface tension of the test substance is 28.4 mN/m at 20°C (90% saturation concentration).

Conclusions:

The surface tension of test substance was determined to be 28.4 mN/m at 20°C.

Description of key information

28.4 mN/m at 20°C of a 90 vol% saturation concentration.

Additional information

The determination was carried out by ring method according to OECD Guideline 115.

The test substance is regarded as surface-active.