Registration Dossier
Registration Dossier
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EC number: 219-045-4 | CAS number: 2338-05-8
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Name Ferric citrate monohydrate
Batch no. 45882
Appearance red to brown solid powder
Composition Ferric Citrate
CAS No. 2338-05-8
Molecular formula C6H5FeO7
Expiry date 18 May 2019
Storage Room Temperature (20 ± 5 °C); Keep away from light - Key result
- Melting / freezing pt.:
- >= 169 - <= 239 °C
- Atm. press.:
- 1 atm
- Decomposition:
- yes
- Decomp. temp.:
- 342.8 °C
- Conclusions:
- The determination of the melting and boiling point of Ferric citrate monohydrate was performed via DSC (differential scanning calorimetry).
Three events were detected.
All events are endothermic.
The results of the determination should be stated under these circumstances as followed:
The first event as dehydration range from 62.76 °C to 170.32 °C (335.91 K to 443.47 K)
The second event as melting range from 169.43 °C to 238.99 °C (442.58 K to 512.14K) with peak maximum of 198.28 °C (471.43 K) and 208.02 °C (481.17 K)
The third event as chemical reaction as 342.78 °C (615.93 K)
Reference
The melting range was from 169.43 °C to 238.99 °C (442.58 K to 512.14K) with peak maximum of 198.28 °C (471.43 K) and 208.02 °C (481.17 K).
Description of key information
The determination of the melting and boiling point of Ferric citrate monohydrate was performed via DSC (differential scanning calorimetry).
Three events were detected. All events are endothermic.
The results of the determination should be stated under these circumstances as followed:
The first event as dehydration range from 62.76 °C to 170.32 °C (335.91 K to 443.47 K)
The second event as melting range from 169.43 °C to 238.99 °C (442.58 K to 512.14K) with peak maximum of 198.28 °C (471.43 K) and 208.02 °C (481.17 K). An average of the two maximum values has been taken as the MP result for this substance.
The third event as chemical reaction as 342.78 °C (615.93 K)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 203 °C
Additional information
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