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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2018-02-12 to 2018-02-13
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
signed 2017-02-28
Type of method:
ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
Zinc dimyristate
EC Number:
240-369-7
EC Name:
Zinc dimyristate
Cas Number:
16260-27-8
Molecular formula:
C28H54O4Zn
IUPAC Name:
Zinc ditetradecanoate
Test material form:
solid: particulate/powder
Details on test material:
Trade name: zinc dimyristate
Appearance: whitish powder

Results and discussion

Surface tension
Surface tension:
66.87 mN/m
Temp.:
20 °C
Conc.:
90 vol%
Remarks on result:
other: 90 vol % saturated solution

Any other information on results incl. tables

Measured surface tension values

Value No.

1st Measurement

(20 min after preparing the solution)

σ [mN/m]

2nd Measurement

(35 min after preparing the solution)

σ [mN/m]

1

66.07

67.81

2

66.04

67.78

3

66.01

67.75

4

65.98

67.72

5

65.96

67.70

6

65.94

67.68

Mean value of the

individual values

66.00 ± 0.05

67.74 ± 0.05

Total mean value

66.87 ± 1.23

The test item has a mean surface tension of 66.87 mN/m. Thus, the test item is not to be regarded as surface active according to regulation EC No. 440/2008 Part A Method A.5.

Applicant's summary and conclusion

Conclusions:
According to OECD Test Guideline 115 (1995)and Regulation EC No. 440/2008 Part A Method A.5. the surface tension at 20 °C of test item zinc ditetradecanoate was determined to be: σ = 66.87 mN/m. Therefore, the test item is not to be regarded as surface active material.