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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 208-341-9 | CAS number: 523-24-0
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- The study was conducted between 10 June 2005 and 11 August 2005
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Diammonium phthalate
- EC Number:
- 208-341-9
- EC Name:
- Diammonium phthalate
- Cas Number:
- 523-24-0
- Molecular formula:
- C8H6O4.2H3N
- IUPAC Name:
- diammonium phthalate
- Test material form:
- solid: crystalline
Constituent 1
- Specific details on test material used for the study:
- Description: white crystalline solid
Lot number: 4172005
Date recieved: 02 June 2005
Storage conditions: room temperature, in the dark
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- 477 K
- Decomposition:
- no
- Sublimation:
- no
Any other information on results incl. tables
Thermograms and thennographic data for Determinations 1 and 2 are shown in the following tables respectively
Determination 1
Thermal event |
Interpretation |
Temperature |
|
°C |
K |
||
endotherm |
Melting temperature |
203.03 |
476 |
Determination 2
Thermal event |
Interpretation |
Temperature |
|
°C |
K |
||
endotherm |
Melting temperature |
203.88 |
477 |
Applicant's summary and conclusion
- Conclusions:
- The melting point/melting range of the test material has been determined to be 477 ± 0.5 K
- Executive summary:
Melting Point/Melting Range. 477 ± 0.5 K, by differential scanning calorimetry, using ASTM E537-86, Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
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.
