Ethanone, 1-(4-methoxyphenyl)-2-[(3-methoxyphenyl)thio]-

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Jun 2006 to Feb 2007

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2007

Report date:

2007

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

GLP compliance:

yes

Type of method:

ring method

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

469-300-0

EC Name:

-

Cas Number:

63675-73-0

Molecular formula:

Hill Empirical Formula: C16H16O3S CAS Empirical Formula: C16H16O3S

IUPAC Name:

1-(4-methoxyphenyl)-2-[(3-methoxyphenyl)sulfanyl]ethan-1-one

Test material form:

solid: particulate/powder

Details on test material:

Sponsor batch no: 151105Purity: 99.9%

Results and discussion

Surface tension

Surface tension:

72.75 mN/m

Temp.:

20 °C

Conc.:

90 vol%

Any other information on results incl. tables

The measured surface tension of pure water at a nominal temperature of 20C was determined to be 73.5mN/m. The literature value at this temperature is 72.75mN/m, and therefore the calibration factor was determined to be 0.9898.

The results for the test substance solution, which was 90% saturated are presented in the table below. The mean measured temperature during the test was 20.1C.

After application of the calibration factor, the mean results was 72.75mN/m.

Surface tension readings at 20C

Time after filling vessel (min)	Surface tension (mN/m)
8	73.5
10	73.5
13	73.5
15	73.5
60	73.5
Mean	73.5

Applicant's summary and conclusion

Conclusions:

The surface tension at 20°C of a 90% saturated solution of Beta Ketosulfide was determined to be 72.75 mN/m, and is therefore not considered to be surface active.

Executive summary:

The experimental procedure followed is described in EC Directive 92/69/EEC Method A5 and OECD Guideline 115. The surface tension at 20C of a 90% saturated solution of Beta Ketosulfide was determined to be 72.75mN/m.