[No public or meaningful name is available]

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 13 March 2017 to 14 March 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

2008

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Version / remarks:

1995

Deviations:

no

GLP compliance:

yes

Type of method:

OECD harmonised ring method

Test material

Test material information

Constituent 1

Reference substance name:

1,3,5-tris(5-isocyanatopentyl)-1,3,5-triazinane-2,4,6-trione

Cas Number:

119934-71-3

Molecular formula:

C21 H30 N6 O6

IUPAC Name:

1,3,5-tris(5-isocyanatopentyl)-1,3,5-triazinane-2,4,6-trione

Constituent 2

Reference substance name:

2-methylpropyl N-(5-isocyanatopentyl)-N-(5-isocyanatopentylcarbamoyl)carbamate

Molecular formula:

C18 H30 N4 O5

IUPAC Name:

2-methylpropyl N-(5-isocyanatopentyl)-N-(5-isocyanatopentylcarbamoyl)carbamate

Test material form:

liquid: viscous

Details on test material:

Appearance: colourless or light yellow viscous liquid
Storage conditions: at room temperature, container tightly closed, flushed with nitrogen.

Results and discussion

Surface tension

Key result

Surface tension:

72.5 mN/m

Temp.:

20 °C

Remarks on result:

other: Conc.= 90% of saturation solubility

Any other information on results incl. tables

Table: Surface tension measurements

Measurement	Time passed after transfer test solution to test vessel [minutes]	Surface tension [mN/m]
		individual	mean (1)	mean (2)
1	15	75.0	74.0	72.5
2	16	74.2
3	17	74.0
4	18	74.1
5	18	74.0
6	19	73.9

(1) Mean calculated from measurements 2 to 6, after equilibrium was reached.

(2)  Multiplied by the calibration factor and Harkins-Jordan correction.

Applicant's summary and conclusion

Conclusions:

The surface tension of an aqueous solution of the substance at 90% of its saturation solubility was determined to be 72.5 mN/m (at 20°C).

Executive summary:

Using the OECD harmonized ring method in a GLP study according to EC A.5 and OECD 115, the surface tension of an aqueous solution of the substance at 90% of its saturation solubility was determined to be 72.5 mN/m (at 20°C). According to the EC A.5 guideline the substance is not surface active.