Bis(neodecanoyloxy)dioctylstannane

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

disregarded due to major methodological deficiencies

Study period:

Oct. 2017 - April 2018

Reliability:

3 (not reliable)

Rationale for reliability incl. deficiencies:

unsuitable test system

Justification for type of information:

The water solubility of the test substance was determined to be 168 µg/L @ 20°C. In this study a concentration of more than 40 mg/L was specified. The water solubility in this study is in contrast to the water solubility determined in the water solubility study and the calculated partition coefficient.

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

GLP compliance:

yes (incl. QA statement)

Type of method:

plate method

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material:
16JSVA015
- Expiration date of the lot/batch:
14. September 2018
- Purity test date:
not state

RADIOLABELLING INFORMATION (if applicable)
not applicable

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:
Room Temperature: (20 ± 5°C), keep container tightly closed, store under inert gas
- Stability under test conditions:
assumed stable


TREATMENT OF TEST MATERIAL PRIOR TO TESTING
none

Key result

Surface tension:

ca. 58.12 mN/m

Temp.:

20.1 °C

Conc.:

43.48 mg/L

Conclusions:

The surface tension of an aqueous solution of Bis(neodecanoyloxy)dioctylstannane was
determined as 58.12 ± 0.15 mN/m at 20.1 °C. As these values were lower than 60 mN/m, Bis(neodecanoyloxy)dioctylstannane was classified
as surface active.

Executive summary:

The surface tension of an aqueous solution of Bis(neodecanoyloxy)dioctylstannane was

determined as 58.12 ± 0.15 mN/m at 20.1 °C. One measurement was performed for verification

(after 60 minutes). No significant changes and thus no significant dependence on

time was observed.

As these values were lower than 60 mN/m, Bis(neodecanoyloxy)dioctylstannane was classified

as surface active.

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

The concentration of the test item in the 90% saturated test solution was determined to be

43.48 mg test item/L (based on analysis of dissolved organic carbon in the test solution).

The saturated solution was obtained from an aqueous solution prepared with 1.00 g/L of

test item by shaking for 24 hours at 19.0 – 20.8 °C in a Schott-flask at 150 rpm.

Description of key information

one Guideline study available

Key value for chemical safety assessment

Surface tension:

58.12

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

43.48