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EC number: 701-003-6 | CAS number: -
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 June 2016 to 14 October 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.1: “Melting/Freezing Temperature”, Official Journal of the European Union no. L142, May 31, 2008.
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 102: "Melting Point / Melting Range", July 27, 1995.
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- United States Environmental Protection Agency (EPA), Product Properties Test Guidelines no. OPPTS 830.7200: "Melting Point/Melting Range", March 1998.
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Batch: RC-1045Study specific test item informationPurity/composition correction factor: No correction factor requiredChemical name (IUPAC), synonym or trade name: Amides, tallow, N,N-bis(2-hydroxypropyl)CAS Number: 1454803-04-3Test item handling: No specific handling conditions required
- Key result
- Melting / freezing pt.:
- >= -50 - <= 10 °C
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- > 200 °C
- Sublimation:
- no
- Conclusions:
- The melting range of MLA-3202 was determined to be -50 to +10°C (223 – 283K) by using DSC.
- Executive summary:
The purpose of the study was to determine the physico-chemical properties for MLA-3202.
The melting temperature of the test item were determined using differential scanning calorimetry (DSC), in accordance with the following guidelines:
European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico Chemical Properties, Guideline A.1: “Melting/Freezing Temperature”, Official Journal of the European Union no. L142, May 31, 2008.
Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 102: "Melting Point / Melting Range", July 27, 1995.
United States Environmental Protection Agency (EPA), Product Properties Test Guidelines no. OPPTS 830.7200: "Melting Point/Melting Range", March 1998.
During cooling an exothermic peak was observed between -40°C and -10°C.
The effect was obtained due to crystallization of the test item. During heating, an endothermic peak between -50°C and 25°C was observed. Due to an irregular baseline, caused by the composition of the test item, no defined melting temperature could be determined.
In order to obtain a sharper melting peak a lower heating rate of 5°C/minute was applied in the Experiment 2. The melting peak was observed between -50°C and +10°C but peal shape was still broad. After the experiment, a colourless residue remained in the sample container.
The melting range was determined from the width of the peak obtained with experiment 2 (between -50°C and 10°C).
The melting range of MLA-3202 was determined to be -50 to +10°C (223 – 283K) by using DSC.
Reference
Description of key information
Key value determined in a GLP accredited laboratory study using differential scanning calorimetry (DSC), in accordance with EU Method A.1, OECD Guideline102 and EPA Procedure no. OPPTS 830.7200.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -50 °C
Additional information
The purpose of the study was to determine the physico-chemical properties for MLA-3202.
The melting temperature of the test item were determined using differential scanning calorimetry (DSC).
During cooling an exothermic peak was observed between -40°C and -10°C.
The effect was obtained due to crystallization of the test item. During heating, an endothermic peak between -50°C and 25°C was observed. Due to an irregular baseline, caused by the composition of the test item, no defined melting temperature could be determined.
In order to obtain a sharper melting peak a lower heating rate of 5°C/minute was applied in the Experiment 2. The melting peak was observed between -50°C and +10°C but peal shape was still broad. After the experiment, a colourless residue remained in the sample container.
The melting range was determined from the width of the peak obtained with experiment 2 (between -50°C and 10°C).
The melting range of MLA-3202 was determined to be -50 to +10°C (223 – 283K) by using
DSC.
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