2,2-Bis(2-aminopropoxy)propane

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2020-04-27

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)

Version / remarks:

1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

ring method

Key result

Surface tension:

67.4 mN/m

Temp.:

20 °C

Conc.:

1.061 g/L

Value No.	1^stMeasurement (5 min after preparing the solution) σ [mN/m]	2^ndMeasurement (27 min after preparing the solution) σ [mN/m]
1	67.03	67.69
2	67.01	67.69
3	67.00	67.69
4	66.99	67.69
5	66.99	67.69
6	66.98	67.70
Mean value of the individual values	67.00 ± 0.02	67.69 ± < 0.01
Total mean value	67.35 ± 0.35

The aqueous solution of the test item has a mean surface tension of 67.4 mN/m. According to Regulation (EC) No. 440/2008 Part A. Method A.5 substances showing a surface tension lower than 60 mN/m under the conditions of method A.5 should be regarded as being surface active materials.Thus, the test item is not regarded as surface active material.

Conclusions:

The mean surface tension of the test item is 67.4 mN/m at 20 °C.

Executive summary:

A study was conducted according to EU-Method A.5 and OECD Guideline 115 to determine the surface tension of an aqueous solution of the test item using the ring method. Due to the high water solubility a solution with a concentration of 1.061 g/L was prepared and measured twice. The mean surface tension of the test item was determined to be 67.4 mN/m at 20 °C.

Description of key information

The mean surface tension of the test item is 67.4 mN/m at 20 °C.

Key value for chemical safety assessment

Surface tension:

67.4

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

1 061

Additional information

A study was conducted according to EU-Method A.5 and OECD Guideline 115 to determine the surface tension of an aqueous solution of the test item using the ring method. Due to the high water solubility a solution with a concentration of 1.061 g/L was prepared and measured twice. The mean surface tension of the test item was determined to be 67.4 mN/m at 20 °C.