Tributyl-2-methoxypropylphosphonium salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol]

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

12 July 2011 - 05 August 2011

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study conducted in accord with an OECD method and GLP guidelines. The procedure was reported and the results and conclusions were reasonable.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2011

Report date:

2012

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

MTDID 3285

IUPAC Name:

MTDID 3285

Details on test material:

- Name of test material (as cited in study report): MTDID 3285
- Physical state: solid
- Analytical purity: 86.67%
- Stability under test conditions: stable
- Storage condition of test material: at room temperature in the dark

Results and discussion

Surface tension

Surface tension:

53.3 mN/m

Temp.:

20 °C

Any other information on results incl. tables

Surface tension was determined using a solution that was 90% of the saturation solubility in water. Surface tension of MTDID 3285: see table 1 in attachment.

MTDID 3285 is considered to be surface active.

Applicant's summary and conclusion

Conclusions:

The corrected surface tension of a test solution at 90% of MTDID 3285 saturation solubility in water at 20.0°C is 53.3 mN/m.

Executive summary:

The surface tension test of an aqueous solution of MTDID 3285 was determined using OECD TG 115 harmonized ring method and EEC Directive 92/69 EEC, A.5. A saturated solution was made by preparing a nominal concentration of 1 g/L of the test substance with double distilled water. The solution was ultrasonicated for 10 minutes and stirred at 19.9 ± 0.6°C for 97 hours. After the stirring period, the nominal 1 g/L test solution was centrifuged for 5 minutes at 7549 g. By removing 45 mL of the aqueous phase and mixing with 5 mL double distilled water, the solution was diluted to 90% of saturation and transferred to measurement vessel. Eight measurements were made at 18-25 minutes to show equilibration. The arithmatic mean of the equilibrated values was calibrated against a water standard and corrected using Harkins-Jordan values. The surface tension of a solution of test substance at 90% of saturation at 20.0 °C is 53.3 mN/m. The test substance is considered a surface active material. This study was conducted in accordance with OECD TG 115 and is compliant with GLP standards. Therefore this study is classified as reliable without restrictions.