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Registration Dossier
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EC number: 200-463-0 | CAS number: 60-23-1
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Mercaptamine
- EC Number:
- 200-463-0
- EC Name:
- Mercaptamine
- Cas Number:
- 60-23-1
- Molecular formula:
- C2H7NS
- IUPAC Name:
- mercaptamine
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- ca. 80 °C
- Decomposition:
- yes
- Decomp. temp.:
- > 80 °C
Any other information on results incl. tables
An endothermic peak was observed between 50°C and 125°C directly followed by another endothermic effect starting at 125°C.
In order to investigate the nature of the first endothermic effect peak, Experiment 2 was stopped directly after this peak. After the experiment, a grey powder residue remained in the sample container (original colour: white). The change of the colour indicated possible reaction and/or decomposition of the test item in addition to potential melting transition indicated by the endotherm.
Applicant's summary and conclusion
- Conclusions:
- It was not possible to determine precise melting temperature of mercaptamine as the melting transition could not be adequately distinguighed by the decompostion of the substance.
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