Registration Dossier
Registration Dossier
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EC number: 266-737-7 | CAS number: 67584-59-2
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:
- 14 Jul - 01 Aug 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Test procedure in accordance with national standard methods and GLP compliant
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- not applicable
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- not applicable
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- not applicable
- GLP compliance:
- yes
- Type of method:
- thermal analysis
- Melting / freezing pt.:
- 52 °C
- Atm. press.:
- 1 014 hPa
- Conclusions:
- A melting point of 52 °C was observed for C4 sulfonamido methacrylate as determined by the OECD 102 method.
- Executive summary:
The melting point of C4 sulfonamido methacrylate was tested using differential scanning calorimetry (DSC) in four experiments. The melting temperature was determined as the mean melting temperature of experiment 1 (51.41°C), experiment 2 (52.21°C), experiment 3 (53.86°C) and experiment 4 (51.50°C). The study was conducted in accordance with the OECD 102 method and was GLP compliant; therefore the study is considered reliable without restrictions.
Reference
The DSC-curves obtained during the four experiments are included in attachments. During the first experiment, an endothermic peak between 40 °C and 75 °C was observed; the effects were obtained due to melting of the test substance. The extrapolated onset temperature of the first peak was 51.41 °C. A repeated heating cycle was applied in Experiment 2; the extrapolated onset temperature was 52.21 °C. In Experiment 3, a closed sample container was used. The extrapolated onset temperature of the melting peak was 53.86 °C. Experiment 4 was carried out to perform the duplicate measurement of Experiment 1. The extrapolated onset temperature of the melting peak was 51.50 °C.
Description of key information
A melting point of 52 °C was observed for C4 sulfonamido methacrylate as determined by the OECD 102 method.
Key value for chemical safety assessment
Additional information
In the key study, the melting point of C4 sulfonamido methacrylate was tested using differential scanning calorimetry (DSC) in four experiments. The melting temperature was determined as the mean melting temperature of experiment 1 (51.41°C), experiment 2 (52.21°C), experiment 3 (53.86°C) and experiment 4 (51.50°C). The study was conducted in accordance with the OECD 102 method and was GLP compliant; therefore the study is considered reliable without restrictions.
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