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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:
August 2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
no
Type of method:
ring method
Surface tension:
49.06 other: dyne/cm
Temp.:
20 °C
Conc.:
80 mg/L
Surface tension:
29 other: dyne/cm
Temp.:
20 °C
Conc.:
500 mg/L
Remarks on result:
other: Saturated solution after removal of insoluble material.

Results from the surface tension measurement

Table 1: Demineralised water

 

Surface tension [dyne/cm]

Demineralised water

71.6

Table 2: Atmer 163 at 80 mg/L

Run

Surface tension [dyne/cm]

1

49.0

2

49.7

3

48.8

4

48.7

5

49.1

Mean

49.06

Table 3: Atmer 163 saturated solution

Run

Surface tension [dyne/cm]

1

29.0

2

29.0

3

29.0

Mean

29.0

Description of key information

49.05 dyne/cm at 20 °C (limit of water solubility)
29.00 dyne/cm at 20 °C (saturated solution)
(Calvert, M.E., Croda Europe Ltd, 2010)

Key value for chemical safety assessment

Additional information