Oleic acid, compound with 2-amino-2-methylpropan-1-ol (1:1)

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Experimental starting date: 18 October 2017 Experimental completion date: 02 February 2018

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

ring method

Test material

Test material information

Constituent 1

Reference substance name:

Oleic acid, compound with 2-amino-2-methylpropan-1-ol (1:1)

EC Number:

268-793-8

EC Name:

Oleic acid, compound with 2-amino-2-methylpropan-1-ol (1:1)

Cas Number:

68140-41-0

Molecular formula:

C18H34O2.C4H11NO

IUPAC Name:

oleic acid, compound with 2-amino-2-methylpropan-1-ol (1:1)

Specific details on test material used for the study:

Identification: Oleic AMP
CAS No: 68140-41-0
Appearance/Physical state: Yellow paste
Batch: Lab 4436
Purity: 100%
Expiry date: 21 February 2018
Storage conditions: Room temperature, in the dark

Results and discussion

Surface tension

Key result

Surface tension:

29.8 mN/m

Temp.:

20 °C

Conc.:

0.9 g/L

Any other information on results incl. tables

Results

The readings, times and temperatures for the sample solutions are shown in the following tables:

Sample A

Time (mins)	Reading (mN/m)	Temperature (°C)
224	30.5	20.0
235	30.0	20.0
246	30.0	20.0
256	30.0	20.0
265	30.0	20.0

Sample B

Time (min)	Reading (mN/m)	Temperature (°C)
1209	30.0	20.0
1221	29.5	20.0
1232	29.5	20.0
1248	29.0	20.0
1267	29.5	20.0
1285	29.5	20.0

Mean Sample 1:         30.1 mN/m                 pH of Sample 1:         9.7

Mean Sample 2:         29.5 mN/m                 pH of Sample 2:         9.7

Mean result:              29.8 mN/m

Temperature:             20.0 ± 0.5 ºC

 

Applicant's summary and conclusion

Conclusions:

The mean surface tension of duplicate saturated solutions of test item in water (1 g/L saturated solution diluted to 90%) has been determined to be 29.8 mN/m at 20.0 ± 0.5 °C. The test item was considered to be surface-active.

Executive summary:

The determination was carried out by a ring method, using a procedure designed to be compatible with Method A.5 Surface Tension of Commission Regulation (EC) No. 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for the Testing of Chemicals, 27 July 1995.

Conclusion

The mean surface tension of duplicate saturated solutions of test item in water(1 g/L saturated solution diluted to 90%)has been determined to be 29.8 mN/m at 20.0 ± 0.5 °C. The test item was considered to be surface-active.

NOTE: Any of data in this dataset are disseminated by the European Union on a right-to-know basis and this is not a publication in the same sense as a book or an article in a journal. The right of ownership in any part of this information is reserved by the data owner(s). The use of this information for any other, e.g. commercial purpose is strictly reserved to the data owners and those persons or legal entities having paid the respective access fee for the intended purpose.