Registration Dossier
Registration Dossier
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EC number: 242-895-2 | CAS number: 19224-29-4
Melting point / freezing point
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:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- Z-Acetate
- IUPAC Name:
- Z-Acetate
- 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
Constituent 1
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.
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