Acetic acid, chloro-, sodium salt, reaction products with 4,5-dihydro-2-undecyl-1H-imidazole-1-ethanol and sodium hydroxide

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

August 17, 2011 - January 5, 2012

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:

OECD harmonised ring method

Key result

Surface tension:

31.9 mN/m

Temp.:

20 °C

Conc.:

1 g/L

Remarks on result:

other: The substance is considered to be surface active.

As the mean surface tension of double distilled water was determined to be 71.2 mN/m, the calibration factor was calculated to be 1.02.

Measurement	Time passed [minutes]	Surface tension [mN/m]
		individual	mean	Mean multiplied by calibration factor and Harkins-Jordan corrected value
1	40	32.0	33.1 *	31.9
2	43	31.9
3	44	32.0
4	45	32.1
5	50	32.4
6	55	33.2
7	56	33.3
8	57	33.2
9	58	33.1
10	59	32.9

*Mean calculated from measurements 6 to 10, after equilibrium was reached.

Conclusions:

The OECD harmonized ring method was applied for the determination of the surface tension of the substance, in accordance with OECD 115, EU Method A. 5 and GLP. The surface tension of a test solution at a concentration of 1 g/L at 20°C was 31.9 mN/m. According to this, the substance is considered to be surface active.

Description of key information

The surface tension of a test solution at a concentration of 1 g/L at 20°C was 31.9 mN/m. According to this, the substance is considered to be surface active.

Key value for chemical safety assessment

Surface tension:

31.9

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

1 000

Additional information

The OECD harmonized ring method was applied for the determination of the surface tension of the substance, in accordance with OECD 115, EU Method A.5 and GLP.