Registration Dossier
Registration Dossier
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EC number: 206-323-5 | CAS number: 327-62-8
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- publication
- Title:
- Phase Transitions in the Alkali C 1 - n. C 4 Alkanoates
- Author:
- P. Ferloni, M. Sanesi, and P. Franzosini
- Year:
- 1 975
- Bibliographic source:
- Z. Naturforsch. 30a (1975) 1447–1454.
Materials and methods
- Principles of method if other than guideline:
- - Principle of test: Measurement of Phase transition temperatures and enthalpies/heat capacity
- Short description of test conditions: For each salt 3 to 11 samples were DSC analyzed in the range from ~ 110 K up to the melt region, using sealed Al containers. A Wayne-Kerr autobalance precision bridge Mod. B 331 Mk II (frequency: 1592 Hz; conductance range: E - 10 - E-2 Ohm-1 ) in connection with a Gould Brush 500 XY plotter was used to continuously record the conductance of solid samples (in the form of pellets compressed between Ag electrodes) as a function of temperature.
- Parameters analysed / observed: Transition temperatures - GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Potassium propionate
- EC Number:
- 206-323-5
- EC Name:
- Potassium propionate
- Cas Number:
- 327-62-8
- Molecular formula:
- C3H6O2.K
- IUPAC Name:
- potassium propionate
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
Melting / freezing pointopen allclose all
- Key result
- Melting / freezing pt.:
- 638 K
- Remarks on result:
- other: The atmospheric pressure and a decomposition temperaure were not reported
- Key result
- Melting / freezing pt.:
- 364 °C
- Remarks on result:
- other: the atmospheric pressure and a decomposition temperature were not reported
Applicant's summary and conclusion
- Conclusions:
- Based on the results presented in the publication of Ferloni et al (1975) Potassium Propionate has a melting temperature of approximately 364 °C (as calulated from the respective value in Kelvin: 638 K). Other phase trasnsitions (solid to solid) already occurred at 352 K and 258 K, corresponding to 78,85 and -15.5 °C, respectively.
- Executive summary:
Based on the results presented in the publication of Ferloni et al (1975) Potassium Propionate has a melting temperature of approximately 364 °C (as calulated from the respective value in Kelvin: 638 K). Other phase transitions (solid to solid) already occurred at 352 K and 258 K, corresponding to 78,85 and -15.5 °C, respectively.
Melting Point: 364°C
The study is considered acceptable and satifies the information requirements according to OECD TG 102.
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