Linalyl formate

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 May 2014 - 24 July 2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: A modern GLP study conducted according the appropriate guidelines.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2014

Report date:

2014

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:

Linalyl formate

EC Number:

204-120-6

EC Name:

Linalyl formate

Cas Number:

115-99-1

Molecular formula:

C11H18O2

IUPAC Name:

linalyl formate

impurity 1

Reference substance name:

Linalyl acetate

EC Number:

204-116-4

EC Name:

Linalyl acetate

Cas Number:

115-95-7

Molecular formula:

C12H20O2

IUPAC Name:

1,5-dimethyl-1-vinylhex-4-en-1-yl acetate

impurity 2

Reference substance name:

Linalool

EC Number:

201-134-4

EC Name:

Linalool

Cas Number:

78-70-6

Molecular formula:

C10H18O

IUPAC Name:

3,7-dimethylocta-1,6-dien-3-ol

Test material form:

liquid

Details on test material:

- Name of test material (as cited in study report):Linalyl formate
- Molecular formula: C11H18O2
- Molecular weight: 182.3 g/mol
- Physical state: clear colorless liquid

Results and discussion

Surface tension

Surface tension:

53.2 mN/m

Temp.:

20 °C

Conc.:

90 vol%

Remarks on result:

other: Mean value from duplicate aqueous samples prepared at 90% saturation, individual replicate values being 53.2 and 53.2 mN/m

Any other information on results incl. tables

Based on analytical data generated during the determination of water solubility, the dissolved content of the sample solutions was expected to be predominantly hydrolysis/degradation products, as opposed to the initial parent test item. This was concluded not to impact on the validity of the test as, due to the rapid hydrolysis observed for this test item, the hydrolysis products were considered more relevant with respect to environmental risk assessment, with the parent test item expected to degrade on accidental release into water.

Applicant's summary and conclusion

Conclusions:

The surface tension of Linalyl formate was 53.2 mN/m at 20.0 ± 0.5 °C (mean value from duplicate aqueous samples prepared at 90% saturation, individual replicate values being 53.2 and 53.2 mN/m). The test item was considered to be surface-active.

Executive summary:

The surface tension of Linalyl formate was measured according to OECD Guideline No. 115 (ring method).

The surface tension of Linalyl formate was 53.2 mN/m at 20.0 ± 0.5 °C (mean value from duplicate aqueous samples prepared at 90% saturation, individual replicate values being 53.2 and 53.2 mN/m). The test item was considered to be surface-active.