Registration Dossier
Registration Dossier
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EC number: 434-050-3 | CAS number: -
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
- Study period:
- 2002-05-28 to 2002-08-12
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- purity and expiration date are missing
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed, 1999-05-25
- Type of method:
- capillary method
- Specific details on test material used for the study:
- Appearance: yellow-green powder with characteristic odour
Storage conditions: closed plastic container, at room temperature
Treatment of test material prior to testing: fine pluverising in an agate mortar - Decomposition:
- ambiguous
- Decomp. temp.:
- >= 313 - <= 363 °C
- Sublimation:
- ambiguous
- Subl. temp.:
- >= 342 - <= 348 °C
- Conclusions:
- The test item decomposes in the range between 313 °C to 363 °C. No melting was observed.
Reference
Preliminary test:
The substance showed a decomposition from 320 -350 °C and appeared black at 360 °C. No Melting was observed.
Main test:
1st measurement:
- 322 °C: discolouration to light brown
- 348 °C: discolouration to brown, yellow sublimate
- 351 °C: complete discolouration to fawn brown
- 355 °C: discolouration to dark brown
- 360 °C: discolouration to black
2nd measurement:
- 313 °C: beginning discolouration to light brown
- 342 °C: complete discolouration to light brown, yellow sublimate
- 344 °C: discolouration to a darker brown
- 351 °C: beginning discolouration to black
- 363 °C: discolouration to black
Decomposition from 313 °C up to 360 °C, no melting was observed.
Description of key information
The test item decomposes in the range between 313 °C to 363 °C. No melting was observed.
Key value for chemical safety assessment
Additional information
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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