Registration Dossier
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EC number: 268-859-6 | CAS number: 68152-93-2
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:
- Initiation: September 24, 2013 Completion May 20, 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- July, 27, 1995
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: Capillary Tube in a Liquid Bath (modified)
- Specific details on test material used for the study:
- Tall oil, maleated is a dark viscous liquid at room temperature.
- Key result
- Melting / freezing pt.:
- -23.6 °C
- Conclusions:
- Tall oil, maleated had a melting point of <-23.6 °C (249.4 °K).
- Executive summary:
Test item tall oil, maleated was tested to determine melting point according to OECD Guideline for the Testing of Chemicals. Test No. 102: Melting Point/Melting Range
Tall oil, maleated is a dark viscous liquid at room temperature. To determine if the material solidified at freezer temperatures, the following procedure was used:
1. Five milliliters of the test item was transferred into a 20 mL clear glass vial.
2. The sample was placed in a freezer overnight.
3. After 19.5 hours, the sample was removed and immediately probed with a glass pipette to determine if it was still a liquid.
4. The observations were recorded.
The starting temperature of the freezer was -23.1 °C. After incubating overnight, the temperature was -23.6 °C at the time the sample was inspected for solidification. It was observed that at -23.6 °C, the test item was still a sticky liquid. The melting point is therefore <-23.6 °C.
Reference
Description of key information
When the sample was inspected for solidification (at -23.6 °C) after overnight incubation, it was observed that the test item was still a sticky liquid. The melting point is therefore <-23.6 °C. For performing the chemical safety assessment, a key value of -23.6 °C has been chosen as it represents the worst case scenario.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -23.6 °C
Additional information
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