Cyclohexanone, 4-methoxy-

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2006-06-07 to 2006-09-07

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

1992

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Version / remarks:

1981

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

ring method

Key result

Surface tension:

70.8 mN/m

Temp.:

20 °C

Conc.:

1 000 mg/L

Two aqueous solutions of the test item (approx. 1 g / L; 202.3 mg and 203.8 mg ad 200 ml) were prepared by adding distilled water and shaking the solutions. The test item was solved completely.

The measurements were carried out at 20°C ± 0.5°C. A correction factor (Harkins & Jordan) has been accounted for.

The mean value, multiplied by the calibration factor (F= 1.0099) yields to:F = 70.8 mN/m.

 

Validity criteria for the measurement of the surface tension:

Target condition according to guideline OECD 115:	Actual condition according to the study:	Validity criteria met:
A solution of the substance is prepared in distilled water. The concentration of this solution should be 90 % of the saturation solubility of the substance in water; when this concentration exceeds 1 g/ L, a concentration of 1 g/ L is used for testing.	The test substance was determined to be miscible with water at any ratio (see "Water solubility"). A concentration of 1 g/ L was used for testing.	Yes
The measurement shall be made at approximately 20 °C and shall be controlled to within ± 0.5 °C.	The test temperature was 20 °C ± 0.5 °C.	Yes
The measurement results: individual readings, their arithmetic mean and the corrected mean; concentration of the solution should be stated.	The results are stated in sufficient detail (a correction factor (Harkins & Jordan) has already been accounted in the individual results).	Yes

 

Conclusions:

The surface tension of the test substance was 70.8 mN/m at 20°C.

Executive summary:

The surface tension of the test substance was 70.8 mN/m at 20°C.

Description of key information

The surface tension of the test substance was 70.8 mN/m at 20°C.

Key value for chemical safety assessment

Surface tension:

70.8

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

1 000