Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
19 May - 04 June 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Test procedure in accordance with national standard methods under GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report Date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
GLP compliance:
yes
Type of method:
thermal analysis

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): MTDID 15655
- Physical state: yellowish viscous liquid
- Analytical purity: 91.4%
- Expiration date of the lot/batch: 27 August 2017
- Storage condition of test material: at room temperature

Results and discussion

Melting / freezing point
Melting / freezing pt.:
-25 °C
Remarks on result:
other: At atmospheric pressure, exact value not reported.

Any other information on results incl. tables

The DSC-curves obtained during the two experiments are included in attachments. During the cooling in the first experiment, a glass transition between -20 °C and -50 °C was observed. During heating, a glass transition between -50 °C and 0 °C was observed. The inflection point of the glass transition was -25.10 °C. Experiment 2 was performed as a duplicate of Experiment 1. Similar results were obtained.

Applicant's summary and conclusion

Conclusions:
A melting point of -25 °C was observed for Z-Acetate as determined by the OECD 102 method.
Executive summary:

The melting point of Z-Acetate was tested using differential scanning calorimetry (DSC). During cooling in both experiments, a glass transition was observed between -20 °C and -50 °C. During heating, a glass transition was observed between -50 °C and 0 °C. The average inflection point of the glass transition was -25 °C. The study was conducted in accordance with the OECD 102 method and was GLP compliant; therefore the study is considered reliable without restrictions.