Formaldehyde, oligomeric reaction products with acetone and diphenylamine

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

07 September 2015 to 10 December 2015

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:

73.8 mN/m

Temp.:

20 °C

Conc.:

90 vol%

Surface tension of the test item

Measurement	Time passed after transfer test solution to test vessel [minutes]	Surface tension [mN/m]
		Individual	Mean	Mean multiplied byΦb and Harkins-Jordan correct value
1 2 3 4 5 6	15 16 17 18 19 20	71.6 72.5 72.3 72.3 72.4 72.5	72.4	73.8

Mean calculated from measurement 2 to 6, after equilibrium reached.

Conclusions:

The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 73.8 mN/m. According to this, the test item is considered not to be surface active.

Executive summary:

The purpose of the study was to determine the physico-chemical properties for Formaldehyde, oligomeric reaction products with acetone and diphenylamine.

 

The study was performed to the following guidelines, in compliance with GLP:

European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.5: “Surface Tension”, Official Journal of the European Union no. L142, May 31, 2008.

Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 115: "Surface Tension of Aqueous Solutions", July 27, 1995.

 

The OECD harmonized ring method was applied for the determination of the surface tension of Formaldehyde, oligomeric reaction products with acetone and diphenylamine.

 

The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 73.8 mN/m. According to this, the test item is considered not to be surface active.

Description of key information

Key value determined in a GLP accredited laboratory study using the OECD harmonized ring method according to OECD Guideline 115 and EU Method A.5.

The surface tension of a test solution at 90% of the test item saturation solubility in water and at 20°C was 73.8 mN/m. According to this, the test item is considered not to be surface active.

Key value for chemical safety assessment

Surface tension:

73.8

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

90