Registration Dossier
Registration Dossier
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EC number: 216-700-6 | CAS number: 1643-20-5
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
- Reliability:
- 2 (reliable with restrictions)
- Principles of method if other than guideline:
- The amine oxides were synthesised by oxidation of the corresponding trialkylamine with H2O2. After oxidation and isolation the products were thoroughly dried by azeotropic distillation with benzene and toluene followed by multiple crystallisations (4-5 times) from dry Me2CO and dried over P4O10 in a high vacuum. The purity was checked by TLC and IR spectra.
- GLP compliance:
- no
- Type of method:
- other: method not specified, however a capllary method was used for shorter chain length amine oxides
- Melting / freezing pt.:
- 130 - 134 °C
- Atm. press.:
- 1 013 hPa
- Remarks on result:
- other: C12 AO
- Conclusions:
- The melting point of the substance is approximately 130 -134 deg C.
Reference
A study is described in the literature [Devinsky et al 1985] where the authors measured the melting points of several pure alkyl dimethylamine oxide from C10 to C16. The measured melting point for C12 AO was 130 - 134°C.
Description of key information
The melting point is in the range of 130-134 °C
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 130 °C
Additional information
The melting point of C12 AO is in the range 130 -134 °C [Devinsky et al 1985].
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