Registration Dossier
Registration Dossier
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EC number: 947-596-7 | 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:
- 11.01.2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- Council Regulation (EC) No.440/2008, Published in O.J. L 142, 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- 201.4 °C
- Atm. press.:
- 98.9 kPa
- Decomposition:
- yes
- Remarks:
- No peak corresponding to boiling of test item was observed to the temperature at which the thermal decomposition started.
- Decomp. temp.:
- °C
- Conclusions:
- Melting temperature of test item, Pigment Yellow 4, is 201.4 °C, i.e. 474.5 K.Extended uncertainty of determination is ± 0.35 °C.Extended uncertainty was calculated using a coverage factor of 2.The melting is connected with thermal decomposition of test item. No peak corresponding to boiling of test item was observed to the temperature at which the thermal decomposition started.Boiling temperature of test item, Pigment Yellow 4, could not be determined due to thermal decomposition of test item.
- Executive summary:
The melting and boiling temperatures of the test item, Pigment Yellow 4, were investigated. The Differential Scanning Calorimetry method was used.
The procedures used in the study were in accordance with:
- Method A.1. Melting/Freezing temperature, Council Regulation (EC) No.440/2008, Published in O.J. L 142, 2008
- OECD Test Guideline No.102, Melting Point/Melting Range, Adopted July 27, 1995
- Method A.2 – Boiling Temperature (1.6.6.2 Differential scanning calorimetry), Council Regulation (EC) No.440/2008, Published in O.J. L 142, 2008
- OECD Test Guideline No 103, Boiling Point, Adopted July 27, 1995
Melting temperature of test item, Pigment Yellow 4, is 201.4 °C, i.e. 474.5 K.
Extended uncertainty of determination is ± 0.35 °C.
Extended uncertainty was calculated using a coverage factor of 2.
The melting is connected with thermal decomposition of test item. No peak corresponding to boiling of test item was observed to the temperature at which the thermal decomposition started.
Boiling temperature of test item, Pigment Yellow 4, could not be determined due to thermal decomposition of test item.
Reference
Description of key information
Melting temperature of test item, Pigment Yellow 4, is 201.4 °C, i.e. 474.5 K.
Extended uncertainty of determination is ± 0.35 °C.
Extended uncertainty was calculated using a coverage factor of 2.
The melting is connected with thermal decomposition of test item. No peak corresponding to boiling of test item was observed to the temperature at which the thermal decomposition started.
Boiling temperature of test item, Pigment Yellow 4, could not be determined due to thermal decomposition of test item.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 201.4 °C
Additional information
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