Reaction mass of Reaction product of 1-chloro-3-{[1-chloro-3-(dodecyloxy)propan-2-yl]oxy}propan-2-ol with methyl diethanolamine and [3-(dodecyloxy)-2-hydroxypropyl]bis(2-hydroxyethyl)methylammonium chloride

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-04-03

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Version / remarks:

1995

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

plate method

Test material

Test material information

Constituent 1

Reference substance name:

Reaction mass of Reaction product of 1-chloro-3-{[1-chloro-3-(dodecyloxy)propan-2-yl]oxy}propan-2-ol with methyl diethanolamine and [3-(dodecyloxy)-2-hydroxypropyl]bis(2-hydroxyethyl)methylammonium chloride

IUPAC Name:

Reaction mass of Reaction product of 1-chloro-3-{[1-chloro-3-(dodecyloxy)propan-2-yl]oxy}propan-2-ol with methyl diethanolamine and [3-(dodecyloxy)-2-hydroxypropyl]bis(2-hydroxyethyl)methylammonium chloride

Test material form:

other: solid, very viscous yellow paste

Results and discussion

Surface tension

Key result

Surface tension:

26.07 mN/m

Temp.:

20 °C

Conc.:

1 g/L

Remarks on result:

other: mean of 2 series, each of 10 measurements

Any other information on results incl. tables

The test item solution was held at constant temperature (20.0 ± 0.5 °C). 59 minutes after conclusion of the first measurement series, a second measurement series was performed for verification purposes. After the first and the second measurement series, the difference between mean values was less than 5%. Therefore no additional measurement series was required.

Measured values test item first series:

Measurement	Time	Mass	Surface Tension	Temperature
No	s	g	mN/m	°C
1	3.0	0.1089	26.57	20.4
2	5.9	0.1067	26.03	20.4
3	8.9	0.1073	26.18	20.4
4	11.9	0.1067	26.03	20.4
5	14.9	0.1068	26.05	20.4
6	17.9	0.1066	26.00	20.4
7	20.9	0.1066	26.00	20.4
8	23.9	0.1064	25.96	20.4
9	26.9	0.1064	25.96	20.4
10	29.9	0.1063	25.93	20.4
Mean			26.07
Standard Deviation			0.19

 

Measured values test item second series:

Measurement	Time	Mass	Surface Tension	Temperature
No	s	g	mN/m	°C
1	3.0	0.1083	26.42	20.4
2	5.3	0.1064	25.96	20.4
3	8.9	0.1058	25.81	20.4
4	12.0	0.1060	25.86	20.4
5	14.9	0.1060	25.86	20.4
6	17.9	0.1059	25.83	20.5
7	21.0	0.1056	25.76	20.5
8	23.9	0.1057	25.79	20.5
9	26.9	0.1058	25.81	20.5
10	29.9	0.1056	25.76	20.5
Mean			25.89
Standard Deviation			0.20

During the specified period of time, no significant changes in the surface tension were detected. Values ranging from 25.76 mN/m to 26.57 mN/m were recorded showing no significant variations. The values of the single determinations show no significant difference (0.69 % between mean values of the two measurement series).

Applicant's summary and conclusion

Conclusions:

The surface tension of an aqueous solution of test item was determined as 26.07 ± 0.19 mN/m at 20 ±0.5 °C. As the determined surface tension of test item was lower than 60 mN/m, the test item can be considered as surface active.

Executive summary:

The surface tension of an aqueous solution of the test item was determined according to OECD 115 and EC A.5 using the plate method.

The surface tension of an aqueous solution of the test item was determined as 26.07 ± 0.19 mN/m at 20 ±0.5 °C. One measurement was performed for verification (after 59 minutes). No significant changes and thus no significant dependence on time was observed. As this value is lower than 60 mN/m, the test item was considered as surface active.

The surface tension of the negative control falls within the accepted range.