Registration Dossier
Registration Dossier
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EC number: 842-798-0 | CAS number: 444996-79-6
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental work 6/8/2020; Report 7/8/2020
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- sodium 3-[(3,4-dicyanophenyl)thio]propane-1-sulfonate
- EC Number:
- 842-798-0
- Cas Number:
- 444996-79-6
- Molecular formula:
- C11H9N2NaO3S2
- IUPAC Name:
- sodium 3-[(3,4-dicyanophenyl)thio]propane-1-sulfonate
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- Water
- Test material form:
- other: Paste
Constituent 1
impurity 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- >= 260 - <= 270 °C
- Atm. press.:
- > 100 - < 101 kPa
- Decomposition:
- no
- Sublimation:
- no
Applicant's summary and conclusion
- Conclusions:
- The melting point was determined to be 260-270ºC, with an apparent phase change taking place a few degrees before melting at 269ºC
- Executive summary:
The study was undertaken to determine the melting point of the test material using DSC.
The main melting endotherm was seen at 269.4ºC, but in advance of this an endotherm was seen commencing at 260ºC, which is consistent with a phase chnage. The melting point is given by the range 260 -270ºC
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