Registration Dossier
Registration Dossier
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EC number: 701-184-1 | CAS number: -
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
Boiling point: HMDTMP (4-7K) will undergo thermal decomposition without boiling.
Key value for chemical safety assessment
Additional information
The requirement to test the boiling point of HMDTMP (4-7K) was waived because the substance decomposes without boiling. This statement is supported by the evidence from a DSC study which demonstrates that the anhydrous form of the parent acid (HMDTMP-H) undergoes thermal decomposition from approximately 200°C. See melting point study reported in Section 4.2. Salts would be expected to undergo thermal decomposition in the same way as the parent substance.
In available secondary sources to which no reliability could be assigned, the HMDTMP (4 -7K) was reported to have boiling temperature values of approximately 100°C, 105-108°C and >100°C; these are assumed to relate to the aqueous solution of the substance. A decomposition temperature of >200°C following the evaporation of water were reported for HMDTMP (4-7K).
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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