Registration Dossier
Registration Dossier
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EC number: 201-286-1 | CAS number: 80-51-3
Flash point
Administrative data
Link to relevant study record(s)
Description of key information
The study does not need to be conducted. Calculations indicate a flash point above 100oC. p-TSH starts to decompose and melt at 105-100oC. The decomposition releases primarily water and nitrogen, which are not flammable. Some hydrazine may also be released at a smaller amount - hydrazine is flammable. In conclusion: if p-TSH has a flash point it will be above 100oC, and should therefore not be classified for flammability.
Key value for chemical safety assessment
- Flash point at 101 325 Pa:
- 105 °C
Additional information
Adaption to column 2, Annex VII. The study does not need to be conducted based on the physical state of the substance. According to ECHA guidance, flash point is only relevant to substances that are liquid at room temperature. Also, decomposition occurred during the melting point study.
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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