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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
May 2009 - October 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
2004
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
1995
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
OECD harmonised ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
2-Amino-5-cyano-N,3-dimethylbenzamide
Cas Number:
890707-29-6
Molecular formula:
C10H11N3O
IUPAC Name:
2-Amino-5-cyano-N,3-dimethylbenzamide
Test material form:
solid: particulate/powder

Results and discussion

Surface tension
Key result
Surface tension:
64.77 other: dynes/cm
Temp.:
20 °C
Conc.:
90 vol%

Any other information on results incl. tables

Table 1: Surface tension at 20 ± 0.5°C









































ReplicateTemperature (°C)Elapsed time (minutes)Apparent surface tension (dynes/cm)Calibration correction factorInstrument correction factorTrue surface tension (dynes/cm)
120.2467.20.960810.09265.1598
220.1866.80.960810.09264.7719
320.21266.40.960810.09264.3841

No significant change in surface tension was observed with time after transferring the solution to the measurement vessel.


Average: 64.77 dynes/cm
Standard Deviation: 0.39 dynes/cm

Applicant's summary and conclusion

Conclusions:
The surface tension for the test substance was determined at 20 ± 0.5°C.
The analytical results showed that the true surface tension of the test substance is 64.77 ± 0.39 dynes/cm.
Executive summary:

The present study was conducted to determine the surface tension of the test substance according to the OECD harmonized ring method given in OECD Guideline 115.


Before sample analysis, the tensiometer was calibrated and shown to operate correctly. The surface tension for the test substance was determined at 20 ± 0.5°C. The mean surface tension as a dilution at 90% of the saturation concentration in water of the test substance was determined to be 64.77 dynes/cm (mN/m).