Registration Dossier
Registration Dossier
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EC number: 281-161-6 | CAS number: 83877-91-2
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
The melting point was determined to be -76 °C as per OECD 102.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -76 °C
Additional information
The key value of melting point was determined by using differential scanning calorimetry method according to the guideline OECD 102 in accordance with GLP. The inflection point of the glass transition was found at -75.44°C. After the experiment, a black residue was observed on the lid of the sample container and a black residue remained in the sample container. Based on the results, it was concluded that the melting temperature (glass transition) of the test substance is -76°C (197K).
This substance is hydrolytically unstable.When it comes in contact with water or moisture a complete hydrolysis will take place with no significant reaction products other than 2 -methylpropanol and ethyl acetoacetate and insoluble hydrated titanium oxides.
Because of rapid hydrolysis (half-life <10 minutes), the CSA concentrates on the most hazardous degradation product which is 2 -methylpropanol. The read-across data on the melting point of 2 -methylpropanol; -108 deg. Celsius, released from the substance is used as key value in CSA (peer-reviewed secondary source; O'Neil et al. 2006).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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