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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Surface tension

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP, guideline, available as unpublished report, no restrictions, fully adequate for assessment.
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method
Surface tension:
69.9 mN/m
Temp.:
20 °C
Remarks on result:
other: Concentration not reported
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.

Description of key information

In accordance with column 2 of REACH Annex VII, the surface tension study does not need to be conducted as, based on the structure of this substance, surface activity is not expected or predicted and surface tension is not a desired property of the material.

Key value for chemical safety assessment

in mN/m at 20°C and concentration in mg/L:
69.9

Additional information

In accordance with column 2 of REACH Annex VII, the surface tension study does not need to be conducted as, based on the structure of this substance, surface activity is not expected or predicted and surface tension is not a desired property of the material.