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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 611-005-8 | CAS number: 53513-80-7
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1996
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline-Studie, ausführlich dokumentiert
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 996
- Report date:
- 1996
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 51005
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E 537-76
- Deviations:
- not specified
- GLP compliance:
- yes
- Type of method:
- other: Differentialscanningkalorimetrie
Test material
- Reference substance name:
- D-Penicillamin-Bleisalz
- IUPAC Name:
- D-Penicillamin-Bleisalz
- Reference substance name:
- Bleisalz der 2-Amino-3-mercapto-3-methylbuttersäure
- IUPAC Name:
- Bleisalz der 2-Amino-3-mercapto-3-methylbuttersäure
- Details on test material:
- - Analytical purity: >99.0%
- Lot/batch No.: 120595
- Storage condition of test material: keine besonderen Maßnahmen
Constituent 1
Constituent 2
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- > 260 °C
- Decomposition:
- yes
- Remarks on result:
- other: oberhalb 260°C wurden Zersetzungserscheinungen beobachtet
Any other information on results incl. tables
Bis zu einer Temperatur von 260°C konnte keine Phasenumwandlung beobachtet werden. Ab ca. 260°C zeigte sich ein endothermer Trend, dem sich ein exothermer anschloß.
Ergebnis:
Messung Nr. |
Einwaage der Prüfsubstanz |
Restmenge nach Aufheizung |
Restmenge in % |
1 |
6,640 mg |
4,502 |
67,8% |
2 |
9,900 mg |
6,729 mg |
68,0% |
3 |
9,688 mg |
6,564 mg |
67,8% |
Der durchschnittliche Substanzverlust bei der Aufheizung beträgt 32,2%. Dieser Substanzverlust läßt auf Zersetzungserscheinungen mit anschließender Verdampfung schließen. Bei der verbleibenden schwarzen pulverförmigen Restmenge handelt es sich höchstwahrscheinlich um Bleisulfid, was durch die Stöchiometrie bestätigt wird.
Applicant's summary and conclusion
- Conclusions:
- Der Schmelzpunkt von D-Penicillamin-Bleisalz ist nicht bestimmbar. Die Testsubstanz zesetzt sich oberhalb 260°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.
