Registration Dossier
Registration Dossier
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EC number: 269-924-1 | CAS number: 68391-05-9 This substance is identified by SDA Substance Name: C12-C18 dialkyl dimethyl ammonium chloride and SDA Reporting Number: 16-047-00.
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:
- From July 14, 2010 to July 21, 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- not specified
- Type of method:
- differential scanning calorimetry
- Remarks:
- Differential Scanning Calorimetry on a Mettler
- Key result
- Melting / freezing pt.:
- ca. -30 - ca. 300 °C
- Atm. press.:
- ca. 101.3 hPa
- Remarks on result:
- other: No melting point was detected for the test substance
- Conclusions:
- Under the study conditions, no melting point was detected for the test substance because the test substance is a paste at room temperature.
- Executive summary:
A study was conducted to determine the melting point of the test substance, C12-18 DAQ (99.6% active), according to the method equivalent or similar to OECD guideline 102. The analysis was performed with differential scanning calorimetry on a Mettler DSC 1 under nitrogen atmosphere (20 mL/min). The temperature range of -30-300 °C (5 °C/min) was used.12.7 mg of test sample was placed in a 40 µL aluminium cup for analysis. Under the study conditions, no melting point was detected for the test substance because the test substance is a paste at room temperature (Ulama & Karlsson, 2010).
Reference
No obvious melting point was detected for the test substance. The reason for this is probably related to the fact that the substance is paste at room temperature.
Description of key information
The melting point of the test substance was determined using differential scanning calorimetry (DSC), according to a method similar to OECD Guideline 102 (Ulama, 2010).
Key value for chemical safety assessment
Additional information
No melting point was detected for the test substance because the test substance is a paste at room temperature.
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