Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
19.09.2017 to 24.10.2017
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 guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid

Results and discussion

Melting / freezing point
Remarks on result:
other: no melting point found

Applicant's summary and conclusion

Conclusions:
In a study conducted according to guideline no melting point was found.
Executive summary:

The melting point of Neodecanoic acid, tin(2 +) salt (2:1) was investigated in a study conducted according to OECD Guideline 102 (Melting point / Melting Range) and EU Method A.1 (Melting / Freezing Temperature) using the DSC method.

According to the visual inspection, Zinn-Neodekanoat liquefies at 14 °C.

Within the first heating period of the DSC test, no according endothermic signal was recorded

over a temperature range of approximately - 90 °C … 60 °C, however, a glass transition could be

identified at -60.2 °C. This glass transition was reproducibly detected in the subsequent heating

cycle as well as in repeated tests.

Due to the missing phase transition effect one can conclude that the observed liquefaction at

14 °C is not related to a melting behaviour but to viscosity drop without phase transition (setting

point).