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Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09 March 2016 to 20 July 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
N-2-hydroxyethylacetamide
EC Number:
205-530-8
EC Name:
N-2-hydroxyethylacetamide
Cas Number:
142-26-7
Molecular formula:
C4H9NO2
IUPAC Name:
N-2-hydroxyethylacetamide
Test material form:
liquid

Results and discussion

Surface tension
Key result
Surface tension:
72.1 mN/m
Temp.:
21.4 °C
Conc.:
1 g/L

Any other information on results incl. tables

Sample 1:

Time (mins) Reading (mN/m) Temperature (°C)
71 72.0 21.4
84 72.5 21.4
95 72 21.4
105 72 21.4
115 72 21.4

pH 5.7

Sample 2:

Time (mins)

 Reading (mN/m) Temperature (°C)
148 72.0 21.4
158 72.5 21.4
168 72.0 21.4
178 72.0 21.4
189 72.0 21.4

pH 5.7

Applicant's summary and conclusion

Conclusions:
The surface tension of a nominally 1 g/L of test item in water solution has been determined to be 72.1 mN/m at 21.4 ± 0.5 °C. The test item was considered not to be surface-active.
Executive summary:

Surface Tension was determined to be 72.1 mN/m for a nominally 1 g/L solution at 21.4 ±0.5 °C, using a ring method, designed to be compatible with Method A5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. The test item was considered not to be surface-active.