Registration Dossier
Registration Dossier
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EC number: 280-960-7 | CAS number: 83817-60-1
Appearance / physical state / colour
Administrative data
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 Jul 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Basic data given (comparable to guidelines/standards)
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
Reference
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 Jul 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- adopted in 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- adopted in 1998
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 1: Freezing Point
- Version / remarks:
- adopted in 2009
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- - Appearance: Pale yellow solid
- Expiration date of the lot/batch: 2018-05-18 - Melting / freezing pt.:
- 128.5 °C
- Atm. press.:
- 1 001.4 hPa
A first endothermic effect could be detected in the temperature range of 120 - 140 °C (melting) and a second in the temperature range of 350 - 450 °C (boiling).
Table 1: Results of the DSC-measurements
No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
Atmospheric pressure / hPa |
PN11389 |
12.22 |
128.30 380.34 |
120 - 140 (endo) 350 - 450 (endo) |
9.03 |
1001.4 |
PN11390 |
12.69 |
128.64 372.33 |
120 - 140 (endo) 350 - 450 (endo) |
9.36 |
1001.4 |
During the heating phase a distinct endothermic effect was observed in the temperature range of 120 - 140 °C, which can be assigned to the melting of the test item. As the onset temperatures in both tests do not deviate by more than 0.5 K from their mean value of 128.47 °C, this temperature can be used as melting point. The test item has a melting point of 128.5 °C.
- Reason / purpose for cross-reference:
- reference to same study
Reference
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 Jul 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- adopted in 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Version / remarks:
- adopted in 1996
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- - Appearance: Pale yellow solid
- Expiration date of the lot/batch: 2018-05-18 - Boiling pt.:
- >= 373 - <= 381 °C
- Atm. press.:
- 1 013 hPa
A first endothermic effect could be detected in the temperature range of 120 - 140 °C (melting) and a second in the temperature range of 350 - 450 °C (boiling).
Table 1: Results of the DSC-measurements
No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
Atmospheric pressure / hPa |
PN11389 |
12.22 |
128.30 380.34 |
120 - 140 (endo) 350 - 450 (endo) |
9.03 |
1001.4 |
PN11390 |
12.69 |
128.64 372.33 |
120 - 140 (endo) 350 - 450 (endo) |
9.36 |
1001.4 |
The test item showed a second endothermic signal in the temperature range of 350 - 450 °C that can be assigned to the boiling of the test item.
For the correction of the boiling temperature to standard pressure the test item was assigned to chemical group 3 (e.g. methyl benzoate). A correction value φ = 5.6 was used for the temperature range from 370 °C to 380 °C.
The lowest measured onset temperature is corrected to the standard pressure to be 372.92 °C and the highest onset temperature to be 380.93 °C. As the corrected onset temperatures in both tests deviate by more than 0.5 K from their mean value of 376.93 °C, the test item has a boiling range from 373 °C to 381 °C.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Visual inspection during melting point and boiling point measurement
- GLP compliance:
- no
Test material
- Reference substance name:
- Ethyl 9-oxo-9H-thioxanthene-2-carboxylate
- EC Number:
- 280-960-7
- EC Name:
- Ethyl 9-oxo-9H-thioxanthene-2-carboxylate
- Cas Number:
- 83817-60-1
- Molecular formula:
- C16H12O3S
- IUPAC Name:
- ethyl 9-oxo-9H-thioxanthene-2-carboxylate
Constituent 1
- Specific details on test material used for the study:
- - Appearance: Pale yellow solid
- Expiration date of the lot/batch: 2018-05-18
Results and discussion
- Physical state at 20°C and 1013 hPa:
- solid
Form / colour / odour
- Form:
- solid
- Colour:
- Pale yellow
- Substance type:
- organic
Any other information on results incl. tables
The test item has a melting point of 128.5 °C at atmospheric pressure (1001 hPa) and a boiling range from 373 °C to 381 °C at atmospheric pressure (1013 hPa).
Therefore, at ambient conditions, the test item is solid.
Applicant's summary and conclusion
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.
