Dimethyl(octyl)amine

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

30 November 2015 to 10 March 2016

Reliability:

1 (reliable without restriction)

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

OECD harmonised ring method

Surface tension:

67.4 mN/m

Temp.:

20.4 °C

Remarks on result:

other: Measurement 2 (mean)

Surface tension:

65.3 mN/m

Temp.:

20.3 °C

Remarks on result:

other: Measurement 1 (mean)

Table 1: Mean values, Surface Tension (20°C)

Measurement	Temperature (corrected)	Mean Determined Surface Tension	Mean Surface Tension multipled with calibration factor
	[°C]	[mN/m]	[mN/m]
1	20.3	65.3	66.0
2	20.4	67.4	68.1
Mean:	20.4	66.4	67.1

Table 2 :          Measurement 1, Surface Tension (20 °C)

Equilibration time: 30 min
No.		Time [s]		Surface Tension [mN/m]		Mean Value [mN/m]		SD [mN/m]
1		175		49.0
2		267		49.5
3		338		49.3
4		447		49.5
5		528		50.4		49.5		0.5
6		608		49.5		49.6		0.4
7		685		50.4		49.8		0.5
8		789		50.6		50.1		0.5
9		878		50.9		50.3		0.5
10		966		50.6		50.4		0.5
11		1038		51.9		50.9		0.6
12		1121		51.1		51.0		0.5
13		1204		51.7		51.2		0.5
14		1283		51.3		51.3		0.5
15		1370		52.4		51.7		0.5
16		1446		52.2		51.7		0.5
17		1522		53.2		52.1		0.7
18		1622		53.2		52.4		0.8
19		1696		53.0		52.8		0.5
20		1789		52.8		52.9		0.4
21		1871		52.9		53.0		0.2
22		1960		53.5		53.1		0.3
23		2062		53.4		53.1		0.3
24		2153		54.1		53.3		0.5
25		2243		55.3		53.8		0.9
26		2335		53.9		54.0		0.8
27		2405		55.1		54.4		0.8
28		2504		54.8		54.6		0.6
29		2585		55.7		55.0		0.7
30		2677		55.0		54.9		0.6
31		2760		55.2		55.2		0.3
32		2861		56.2		55.4		0.5
33		2946		56.8		55.8		0.7
34		3017		57.2		56.1		1.0
35		3101		57.1		56.5		0.8
36		3199		57.2		56.9		0.4
37		3262		56.1		56.9		0.5
38		3329		56.9		56.9		0.5
39		3421		56.6		56.8		0.4
40		3513		57.9		56.9		0.7
41		3591		56.8		56.9		0.7
42		3678		58.9		57.4		1.0
43		3753		57.3		57.5		0.9
44		3865		57.6		57.7		0.8
45		3949		58.5		57.8		0.9
46		4044		58.9		58.2		0.7
47		4115		58.2		58.1		0.6

48	4204	58.9	58.4	0.5
49	4293	59.8	58.9	0.6
50	4378	59.6	59.1	0.6
51	4463	58.9	59.1	0.6
52	4563	59.8	59.4	0.5
53	4672	60.2	59.6	0.5
54	4753	60.1	59.7	0.5
55	4830	60.1	59.8	0.5
56	4935	59.9	60.0	0.2
57	5031	60.1	60.1	0.1
58	5135	61.4	60.3	0.6
59	5230	61.1	60.5	0.7
60	5312	61.5	60.8	0.8
61	5406	61.1	61.0	0.6
62	5500	62.3	61.5	0.5
63	5582	62.1	61.6	0.6
64	5690	61.8	61.8	0.5
65	5759	62.4	61.9	0.5
66	5853	62.5	62.2	0.3
67	5937	62.0	62.1	0.3
68	6036	62.1	62.1	0.3
69	6132	61.5	62.1	0.4
70	6209	62.3	62.1	0.4
71	3218	62.3	62.0	0.3
72	6419	63.0	62.2	0.5
73	6501	63.0	62.4	0.6
74	6616	63.2	62.8	0.5
75	6686	63.7	63.0	0.5
76	6788	63.6	63.2	0.3
77	6873	63.8	63.4	0.3
78	4988	63.3	63.5	0.3
79	7076	63.5	63.5	0.2
80	7176	63.9	63.6	0.3
81	7284	63.2	63.5	0.3
82	7386	63.2	63.4	0.3
83	7468	63.5	63.5	0.3
84	7589	63.5	63.5	0.3
85	7671	63.9	63.5	0.3
86	7768	64.0	63.6	0.3
87	7881	64.6	63.9	0.4
88	7990	64.9	64.2	0.6
89	8087	64.9	64.4	0.5
90	8192	64.8	64.6	0.4
91	9314	65.0	64.8	0.2
92	8424	65.2	65.0	0.2
93	8511	65.4	65.1	0.3
94	8618	65.2	65.1	0.2
95	8715	65.4	65.3	0.2
96	8812	65.3	65.3	0.1

SD: Standard Deviation

Conclusions:

The surface tension of AD 1 was determined according to EC method A.5 and OECD 115.
A solution with about 90 % of the saturation solubility of AD 1 was made in ultra-pure water. The test was performed twice at a temperature of 20 °C controlled within +- 0.5 °C. The mean surface tension was determined to be 67.1 mN/m.
The test item can be regarded as non-surface active as the determined surface tension is > 60 mN/m according to the used procedure.

Executive summary:

Report: Nitzsche, I. (2016): Surface Tension of AD 1

Source: Eurofins Agroscience Services EcoChem GmbH / Eurofins Agroscience Services Ecotox GmbH,Eutinger Straße 24,
D – 75223 Niefern-Öschelbronn, Germany; unpublished Report:S15-05581

Guidelines: EC A. 5 and OECD 115

Deviations: no

GLP: yes (incl. certificate)

Materials and Methods: OECD harmonised ring method

Study period: 30 November 2015 to 10 March 2016

Results: The surface tension of AD 1 was determined according to EC method A.5 and OECD 115. A solution with about 90 % of the saturation solubility of AD 1 was made in ultra-pure water. The test was performed twice at a temperature of 20 °C controlled within +- 0.5 °C. The mean surface tension was determined to be 67.1 mN/m. The test item can be regarded as non-surface active as the determined surface tension is > 60 mN/m according to the used procedure.

Key value for chemical safety assessment

Surface tension:

67.1

in mN/m at 20°C and concentration in mg/L:

1 188