Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-04-18 to 2018-04-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
27 July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
31 May 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method
Key result
Surface tension:
42.51 mN/m
Temp.:
20.2 °C
Conc.:
90 vol%

The instrument was calibrated with 0.3, 0.5, and 0.8 g of standard weights. The surface tensions of standard weights were observed and recorded as 24.40, 40.70, and 65.30 mN/m, respectively. A calibration curve was drawn between the observed surface tension and the standard weights.

The surface tensions of water were observed and recorded as 72.70 and 72.60 mN/m for replicates R1 and R2, respectively. The literature value for the surface tension of water was divided by measured surface tension of water.

Table: Determination of surface tension on test item

 Replication Number

Surface Tension of Test item (mN/m) (20.2°C)

Water Calibration Correction Factor

Corrected Surface Tension (mN/m)

Mean of Corrected Surface Tension

(mN/m)

SD (±)

RSD (%)

1

42.60

1.0010

42.64

42.51

0.32

0.753

2

42.10

1.0010

42.14

3

42.70

1.0010

42.74

Note: SD - Standard Deviation, RSD – Relative Standard Deviation

SD: Standard Deviation

RSD: Relative Standard Deviation

The test item concentration of 90% of saturation solubility was used for the analysis. Triplicate samples of the test item  were prepared for the analysis and the values obtained are 42.64, 42.14, and 42.74 mN/m for replicates R1, R2 and R3, respectively. The calculated mean surface tension of test item was found to be 42.51 mN/m with RSD of 0.753% at 20.2 ºC.

Conclusions:
The surface tension was determined to be 42.51 mN/m with RSD of 0.753% at 20.2 ºC.
Executive summary:

The surface tension of of the test item was determined according to OECD Guideline 115 (adopted: 27 July 1995) and EU Method A.5 under GLP conditions. The test item of 90% of saturation concentration of the solution was used for the analysis. Triplicate samples of the test item were prepared for the analysis and the values obtained are 42.64, 42.14, and 42.74 mN/m for replicates R1, R2 and R3, respectively. The calculated mean surface tension of the test item was determined to be 42.51 mN/m with RSD of 0.753% at 20.2 ºC.

Description of key information

The surface tension of the substance was determined to be 42.51 mN/m with RSD of 0.753% at 20.2 ºC.

Key value for chemical safety assessment

Surface tension:
42.51

Additional information

The surface tension of the test item was measured under GLP conditions according to OECD Guideline 115 and EU Method A.5. The test item of 90% of saturation concentration of the solution was used for the analysis. Triplicate samples of the test item were prepared for the analysis and the values obtained are 42.64, 42.14, and 42.74 mN/m for replicates R1, R2 and R3, respectively. The calculated mean surface tension of the test item was determined to be 42.51 mN/m with RSD of 0.753% at 20.2 ºC.