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Physical & Chemical properties

Surface tension

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surface tension
Type of information:
experimental study
Adequacy of study:
key study
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Following standard OECD methods and well documented
according to guideline
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Principles of method if other than guideline:
The product was tested at room temperature, 23°C ± 2°C, and the diluted samples were tested between 30 – 35 minutes after the dilutions were made. In our measurements, we have not observed any systematic dependence of time on surface tension for this product.
GLP compliance:
Type of method:
OECD harmonised ring method
Specific details on test material used for the study:
lot # 53070I16, containing ca 40% actives
Key result
Surface tension:
ca. 40 mN/m
23 °C
0.1 vol%

%Active           Surface Tension             Average      Time Delay

0.00165          46.3    49.2    48.4                48.0                30

0.0132            41.5    42.1    42.1                41.9                30

0.103              40.7    40.1    41.5                40.8                35

0.990              39.7    40.4    40.3                40.1                30

Considered significantly surface active

Description of key information

Figure for CSR

Key value for chemical safety assessment

Surface tension:

Additional information