Registration Dossier

Physical & Chemical properties

Surface tension

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Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP, guideline, available as unpublished report, no restrictions, fully adequate for assessment.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997
Report Date:
1997

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
75% 2,4,4-Trimethyl-1-pentene, 20% 2,4,4-trimethyl-2-pentene. Purity 95%. Stored in the dark under nitrogen at ambient temperature. GC analysis against archive material. The study reports data from Certificate of Analysis provided by the supplier.

Results and discussion

Surface tension
Surface tension:
69.9 mN/m
Temp.:
20 °C

Applicant's summary and conclusion

Conclusions:
The surface tension of 2,4,4-trimethylpentene is 69.9 mN/m at 20˚C. Since the substance was shown to produce a surface tension >60 mN/m under the conditions of the test, it is not considered to show surface active properties according to the EC test method.
Executive summary:

This study was selected as the key study because it is GLP compliant and follows standard guidelines. The surface tension of 2,4,4-trimethylpentene is 69.9 mN/m at 20˚C. Since the substance was shown to produce a surface tension >60 mN/m under the conditions of the test, it is not considered to show surface active properties according to the EC test method.