Ethanol, 2,2'-iminobis-, N-(C13-15-branched and linear alkyl) derivs.

Surface tension

Link to relevant study record(s)

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

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)