Registration Dossier
Registration Dossier
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EC number: 423-860-2 | CAS number: 56309-94-5
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is a solid which decomposes before boiling
Reference
Description of key information
The substance decomposes at 160 °C. There was no boiling point determined up to this temperature (reference 4.3 -1)
Key value for chemical safety assessment
Additional information
The determination of the melting temperature was based on the following guideline: European Economic Community (EEC), EEC-Directive 92/69 EEC, Part A, Methods for the determination of physico-chemical properties, A.1 „ Melting/Freezing temperature“, EEC Publication No. L883, December 1992.
Using a differential scanning calorimeter (DSC), both, the test substance and a reference were heated, using one single heat source. The difference between the enthalpy changes which occurs was recorded.
From the resultant curve, the melting temperature of the test item was determined.
The melting temperature of the test item was determined to be 99 °C (372 K). Probably because of some impurities the melting process started at lower temperatures of about 79 °C (352 K). The test substance probably is not stable (in an air atmosphere) at a temperatures above about 160 °C (433 K).
As the substance decomposes at temperatures above 160 °C, no boiling point could be determined.
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