Registration Dossier
Registration Dossier
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EC number: 201-741-4 | CAS number: 87-39-8
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-05-09 to 2018-07-10
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- July 27, 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- capillary method
Test material
- Reference substance name:
- 5-hydroxyiminobarbituric acid
- EC Number:
- 201-741-4
- EC Name:
- 5-hydroxyiminobarbituric acid
- Cas Number:
- 87-39-8
- Molecular formula:
- C4H3N3O4
- IUPAC Name:
- 5-(hydroxyimino)-1,3-diazinane-2,4,6-trione
- Test material form:
- solid: particulate/powder
- Details on test material:
- Lot/batch No.: 201713807
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- > 200 °C
Applicant's summary and conclusion
- Conclusions:
- The melting point of violuric acid could not be determined because the test item decomposes at temparatures above 200°C.
- Executive summary:
The melting point of violuric acid was determined according to OECD TG 102 with the capillary tube method.
The test item was a white to light yellow powder up to 150°C and than changed gradually to light orange at 200°C, light brown at 225°C, dark brown at 240°C, and black at 241°C.
Due to composition of the test item no melting point could be determined.
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