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Physical & Chemical properties

Surface tension

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Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From September 3, 2020 to October 19, 2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2020
Report date:
2020

Materials and methods

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

Test material

Constituent 1
Reference substance name:
Sulfonic acids, C16-alkane hydroxy and C16-alkene, sodium salts
EC Number:
297-664-9
EC Name:
Sulfonic acids, C16-alkane hydroxy and C16-alkene, sodium salts
Cas Number:
93686-15-8
IUPAC Name:
Sulfonic acid, C16-alkane hydroxy and C16-alkene, sodium salts
Test material form:
solid
Remarks:
This solid sample was obtained from the original liquid form by removing water.
Details on test material:
CAS number: 93686-15-8
Specific details on test material used for the study:
-Storage conditions
The test sample was sealed with nitrogen gas and stored with silica gel in a dark storage place at room temperature.

-Test item identification and stability under storage conditions
The infrared (IR) spectrum of the test item measured at this test facility was confirmed to be identical to that provided by the sponsor.
In addition, the IR spectrum of the test item after the completion of the experiment was the same as that before the start of the experiment, and it indicated that the test item was stable under the storage conditions.

Results and discussion

Surface tension
Key result
Surface tension:
35.9 mN/m
Temp.:
20 °C
Conc.:
1 g/L

Any other information on results incl. tables






























Number of repetition



1



2



Temperature (ºC)



20.0



20.0



Measured value


at measuring point


(mN/m)



1



35.91



35.89



2



35.89



35.89



Average of final points



35.89


Applicant's summary and conclusion

Conclusions:
The surface tension of the registered substance was determined to be 35.9 mN/m at 20℃.
Executive summary:

-Objective


The objective of this study is to obtain the surface tension of C16IOS-Na.


 


-Test guideline


OECD Guidelines for the Testing of Chemicals, No. 115, July 27, 1995, "Surface Tension of Aqueous Solutions"


 


-Test instrument


Surface tensiometer: K11 (KRÜSS GmbH)


Measurement method: Plate method


 


-Test conditions


Test temperature: 20±0.5ºC


Test concentration: 1 g/L


Number of repetition: 2


 


-Results


The surface tension of the registered substance was determined to be 35.9 mN/m at 20℃.