Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 May - 02 September 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Conducted according to OECD guidelines and GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
OECD harmonised ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Diisoamyl phthalate

- Substance type: organic
- Physical state: liquid
- Analytical purity: 100%


- Lot/batch No.: 7920-1-1
- Expiration date of the lot/batch:12 August 2012

- Storage condition of test material: room temperature in the dark

Results and discussion

Surface tension
Surface tension:
58 mN/m
Temp.:
20 °C
Conc.:
90 vol%
Remarks on result:
other: Harkins-Jordan* corrected value

Any other information on results incl. tables

Overall mean calibration corrected surface tension = 60.0 mN/m

Harkins-Jordan corrected value = 58.0 mN/m

Time

Surface tension (mN/m)

(minutes)

Measured

Calibration corrected

 

A

B

A

B

 

 

 

 

 

0

59.0

63.0

58.5

62.5

5

61.0

61.5

60.5

61.0

10

60.0

60.0

59.5

59.5

15

59.5

60.5

59.0

60.0

20

59.5

60.5

59.0

60.0

25

59.0

61.0

58.5

60.5

30

60.0

61.0

59.5

60.5

 

 

 

 

 

Applicant's summary and conclusion

Conclusions:
The surface tension of a 90% saturated aqueous solution of Diisoamyl phthalate was found to be 58.0 mN/m. As the result was less than 60 mN/m, the test substance was considered to be surface active.