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Physical & Chemical properties

Surface tension

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2019-03-13 to 2019-07-01
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Version / remarks:
Organization for Economic Co-operation and Development (OECD) Guidelines for Testing of Chemicals, Guideline No. 115, adopted 27 July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Version / remarks:
Commission Regulation (EC) No 440/2008 of 30 May 2008 Method A.5, Official Journal of the European Union L 142 of 31 May 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
ring method
Specific details on test material used for the study:
Name: Reaction mass of 3-(4-methyl-3-pentenyl)cyclohex3-ene-1-carbonitrile and 4-(4-methyl-3pentenyl)cyclohex-3-ene-1-carbonitrile
Other name: Azuril
CAS number: 68084-04-8/21690-43-7
Batch/Lot number: A170421E
Description: Clear, almost colourless liquid
Purity: 99.35%
Expiry date: 06 June 2020
Storage conditions: Controlled room temperature (15-25 °C, ≤70% relative humidity), protected from humidity (store in a tightly closed container), under inert gas
Key result
Surface tension:
>= 60.34 - <= 60.74 mN/m
Temp.:
20.5 °C
Conc.:
0.864 g/L

The measured and corrected surface tension values of the test solution

Measurement

Age of test solution

Temperature

Surface tension

RSD%

Mean

RSD%

Corrected surface tension

min

○C

mN/m

%

mN/m

%

mN/m

Mean (mN/m)

1

174

20.05

60.93

0.056

60.13

1.18

61.55

60.74

60.5

2

188

20.15

59.59

0.083

60.19

3

199

20.12

59.87

0.093

60.47

4

1678

21.04

59.69

0.046

59.92

0.34

60.11

60.34

5

1691

20.93

60.05

0.051

60.47

6

1703

20.77

60.03

0.066

60.45

 

RSD%

0.85%

Measurements 1-3 were performed on the first day, measurements 4-6 were performed on the second day.

RSD%: relative standard deviation

Conclusions:
As the surface tension valueof the aqueous solution of the test item (at 90% of the saturated level) was slightly higher than 60 mN/m, Reaction mass of 3-(4-methyl-3-pentenyl)cyclohex-3-ene-1-carbonitrile and 4-(4-methyl-3-pentenyl)cyclohex-3-ene-1-carbonitrile is classified as not being a surface active substance (the measured value was slightly above the limit value of classification).
Executive summary:

The surface tension of Azuril was measured using the ring method and according to OECD TG 115. As the surface tension value of the aqueous solution of the test item (at 90% of the saturated level) was slightly higher than 60 mN/m, Azuril is classified as not being a surface active substance (the measured value was slightly above the limit value of classification).

Description of key information

The surface tension of Azuril was measured using the ring method and according to OECD TG 115. As the surface tension valueof the aqueous solution of the test item (at 90% of the saturated level) was slightly higher than 60 mN/m, Azuril is classified as not being a surface active substance (the measured value was slightly above the limit value of classification).

Key value for chemical safety assessment

Surface tension:
60.74

Additional information