Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 825-116-6 | CAS number: 24704-41-4
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- October 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- The determination of the melting point of EDTA-CoNa2 is technically not feasible as the test item decomposes before melting.
By replacing the sodium moiety of EDTA-CoNa2 by hydrogen the stability will not change significantly, so the determination will not be possible neither. - Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Type of method:
- differential scanning calorimetry
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- <= 178.47 °C
- Conclusions:
- The determination of the melting point of EDTA-CoNa2 is technically not feasible as the test item decomposes before melting.
The beginning of decomposition is state as 178.47 °C (451.62 K).
By replacing the sodium moiety of EDTA-CoNa2 by hydrogen the stability will not change significantly. Based on that it can be concluded that EDTA-CoH2 will not melt but decompose as well at or below 178.47 °C
Reference
Description of key information
Key value for chemical safety assessment
Additional information
The determination of the melting point of EDTA-CoNa2 is technically not feasible as the test item decomposes before melting.
The beginning of decomposition is state as 178.47 °C (451.62 K).
By replacing the sodium moiety of EDTA-CoNa2 by hydrogen the stability will not change significantly. Based on that it can be concluded that EDTA-CoH2 will not melt but decompose as well at or below 178.47 °C
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
