4-formyl-2-methoxyphenyl isobutyrate

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

05 May - 28 October, 2014

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:

yes (incl. QA statement)

Type of method:

ring method

Specific details on test material used for the study:

- Name of test material (as cited in study report): Isobutavan
- Physical state: colourless to pale yellow liquid
- Analytical purity: 98.7%
- Expiration date of the lot/batch: December 17, 2015
- Storage condition of test material: ambient temperature, dark

Key result

Surface tension:

51.1 mN/m

Temp.:

20.2 °C

Conc.:

0.516 g/L

Remarks on result:

other: The concentration of 0.516 g/L corresponds to a 90% saturated solution.

Conclusions:

The surface tension of 90 % saturated aqueous solutions of test item in water has been determined to be 51.1 mN/m at 20.2 °C. The test item was considered to be surface-active.

Executive summary:

The Surface Tension of Isobutavan was measured using a ring method according to OECD Guideline No. 115 and EC method A5.

The Surface Tension was determined to be 51.1 mN/m for a 0.516 g/l aqueous dilution of Isobutavan at a tenperature of 20.2°C. The results showed a surface tension < 60 mN/m. Therefore the test item has to be regarded as surface active.

Description of key information

The surface tension of ISOBUTAVAN has been determined to be 51.1 mN/m at 20.2°C (90% saturated solution) according to the OECD 115 guideline.

Key value for chemical safety assessment

Surface tension:

51.1

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

516