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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Nov 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Type of method:
plate method

Test material

Constituent 1
Chemical structure
Reference substance name:
Butyl 4-hydroxybenzoate
EC Number:
202-318-7
EC Name:
Butyl 4-hydroxybenzoate
Cas Number:
94-26-8
Molecular formula:
C11H14O3
IUPAC Name:
butyl 4-hydroxybenzoate

Results and discussion

Surface tension
Surface tension:
ca. 44.5 mN/m
Temp.:
20 °C
Conc.:
90 other: % of saturation

Any other information on results incl. tables

Results

Results of duplicate measurements were:

#1

44.39 ± 0.05 mN/m

#2

44.51 ± 0.03 mN/m

 

Taking into account the different values and their nominal uncertainty, the uncertainty of the mean value (44.5 mN/m) is estimated as 0.1 mN/m.

 

The surface tension of n-butylparaben at 90% of the saturation and 20 °C is 44.5±0.01 mN/m.

The substance is surface active.

Applicant's summary and conclusion