benzyl(diethylamino)diphenylphosphonium 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxyphenyl)propan-2-yl]phenolate

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

November, 1991

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1991

Report date:

1991

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

GLP compliance:

yes

Type of method:

ring method

Test material

Test material information

Constituent 1

Reference substance name:

Quaternary Phosphonium salt/BAF 1/1

IUPAC Name:

Quaternary Phosphonium salt/BAF 1/1

Constituent 2

Reference substance name:

Phosphorus(1+),(N-ethylethanaminato)diphenyl(phenylmethyl)-,(T-4)-,salt with 4,4'-[2,2,2- trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1)

IUPAC Name:

Phosphorus(1+),(N-ethylethanaminato)diphenyl(phenylmethyl)-,(T-4)-,salt with 4,4'-[2,2,2- trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1)

Constituent 3

Reference substance name:

-

EC Number:

479-100-5

EC Name:

-

Cas Number:

577705-90-9

Molecular formula:

C38H36F6O2NP

IUPAC Name:

benzyl(diethylamino)diphenylphosphanium 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxyphenyl)propan-2-yl]benzen-1-olate

Test material form:

solid: particulate/powder

Remarks:

migrated information: powder

Details on test material:

Name of test material (as cited in study report): ADDOTTO GM 102E/BASF
Description: whitish-light pink powder
Batch: 14334/56
Purity: 95%
Storage conditions: at room temperature in the dark
Stability under storage conditions: stable

Results and discussion

Surface tension

Surface tension 1

Surface tension:

58.5 mN/m

Temp.:

20 °C

Conc.:

1.03 g/L

Remarks on result:

other: Surface tension at saturated concentration. The saturated solution was prepared by stirring 103.1 mg of the substance with 100 ml of distilled water.

Surface tension 2

Surface tension:

51.2 mN/m

Temp.:

20 °C

Conc.:

0.927 g/L

Remarks on result:

other: Surface tension at 90% saturated concentration. The 90% saturated solution was prepared by stirring 2.02 g of the substance with 100 ml of distilled water and by diluting 45 ml of the resulting supernatant with 5 ml of distilled water.

Any other information on results incl. tables

Determination of the calibration factor φb (test 1):

σ0 = 72.5 mN/m (Krüss Gmbh, at 20.2 °C)

σg = 72.2 mN/m (mean surface tension of double distilled water at 20.0°C)

φb = σ0/ σg = 72.5/72.2 = 1.004

Surface tension of an aqueous solution of the test substance at saturated concentration (test 1):

Determination	Time expired (min)*	Surface tension (mN/m)				Time passed between preparation and the first measurement:  3 hours
		Measured	Mean not corrected	Mean corrected for calibration	Mean corrected using Harkins & Jordan, 1930
1	30	59.2
2	31	59.2
3	32	59.2
4	33	59.3	59.2	59.4	58.5

*Time passed since the solution was transferred to the measurement vessel

 

To verify the above result, a 90% saturated solution was tested (test 2)

 

Determination of the calibration factor φb (test 2):

σ0 = 72.7 mN/m (Krüss Gmbh, at 20.2 °C)

σg = 70.4 mN/m (mean surface tension of double distilled water at 20.0°C)

 φb = σ0/ σg = 72.7/70.4 = 1.033

Surface tension of an aqueous solution of the test substance at 90% saturated concentration (test 2):

Determination	Time expired (min)*	Surface tension (mN/m)				Time passed between preparation and the first measurement:  2.5 hours
		Measured	Mean not corrected	Mean corrected for calibration	Mean corrected using Harkins & Jordan, 1930
1	15	50.6
2	16	50.7
3	17	50.9
4	18	50.9
5	19	50.8	50.8	52.5	51.2

*Time passed since the solution was transferred to the measurement vessel

Applicant's summary and conclusion

Conclusions:

The surface tension of the saturated solution of the test substance was 58.5 mN/m. Based on the criteria of EC guideline, the substance should be regarded as being surface active materials.