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Physical & Chemical properties

Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25.07.2019
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
other: DIN EN 14370
GLP compliance:
no
Type of method:
plate method
Surface tension:
25.87 mN/m
Temp.:
25 °C
Conc.:
19.9 mg/L
Surface tension:
61.27 mN/m
Temp.:
25 °C
Conc.:
2 mg/L

Results:

Date / Operator

Solution 1

Solution 2

Solution 1

Solution 2

No of measurement

ko19a040a1

 

ko19a040a2

 

ko19a040a3

 

ko19a040a4

Date of measurement

2019-07-25

 2019-07-25

 2019-07-25

2019-07-25

 

 

 

 

 

Measurement

 

 

 

 

Concentration (tel quel)

19.9 mg / L

19.8 mg / L

2.0 mg / L

1.9 mg / L

Total no of points

6

6

7

7

Standard deviation

0.07 mN/m

0.07 mN/m

0.04 mN/m

0.09 mN/m

Surface tension (Zuidema-Waters)

25.77 mN/m

25.96 mN/m

63.25 mN/m

59.28 mN/m

Average

25.87 mN/m

61.27 mN/m

Description of key information

25.87 mN/m at 25 °C, c = 19.9 mg/L

61.27 mN/m at 25 °C, c = 2.0 mg/L

Key value for chemical safety assessment

Additional information