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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
From 2012-11-23 to 2012-11-27
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to a method recommended in international standards. No deviation was reported. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.
Reason / purpose for cross-reference:
reference to other study
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Qualifier:
according to guideline
Guideline:
other: ISO 304
Version / remarks:
1985
GLP compliance:
yes (incl. QA statement)
Remarks:
Inspected on 10 July 2012 / Signed on 30 November 2012
Type of method:
ring method
Specific details on test material used for the study:
Storage conditions: room temperature in the dark
Key result
Surface tension:
64.7 mN/m
Temp.:
21 °C
Remarks on result:
other: expected 90% saturated solution

Water (calibration)

Temperature = 21.0-21.2°C

Sample 1: calibration factor = 1.001 (mean of 6 measurements)

Sample 2: calibration factor = 1.001 (mean of 8 measurements)

Test item

Temperature = 21.0 ± 0.5 ºC

Sample 1: 63.3 mN/m (mean of 5 measurements) = 63.4 mN/m corrected; pH = 4.7

Sample 2: 65.8 mN/m (mean of 6 measurements) = 65.9 mN/m corrected; pH = 5.3

Mean sample result = 64.7 ± 2.0 mN/m

Conclusions:
According to EU A5 criteria, as the result is above the threshold value of 60 mN/m, the substance is NOT considered to have surface-active potential under the experimental conditions.
Executive summary:

The surface tension of the test substance was measured under GLP according to OECD 115/EU A5 guidelines, ring method, at expected 90% of the saturation solubility.

Two replicates were performed, and the mean value was corrected with calibration factor from water.

The surface tension of the test substance is 64.7 mN/m, at ca 9.2 mg/L and 21°C.

Description of key information

Surface tension = 64.7 mN/m, at 90% saturation expected (i.e. ca 9.2 mg/L), and 21°C.

According to EU A5 criteria, as the result is above the threshold value of 60 mN/m, the substance is NOT considered to have surface-active potential under the experimental conditions.

Key value for chemical safety assessment

Surface tension:
64.7

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EU/ISO method and under GLP, is available. It is considered as a key study, and the result is retained as key value.

Concentration is not specified as actual concentration was not measured.