Registration Dossier
Registration Dossier
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EC number: 202-269-1 | CAS number: 93-70-9
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009-04-29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study was performed similar to the OECD Guideline 102, and according to SOP AA 1020-2007 / AA 1020-1129
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Principles of method if other than guideline:
- According to AA-1020-2007 / AA 1020-1129 (25°C-300°C, 10 K/min, aluminium pan with hole)
- GLP compliance:
- no
- Remarks:
- Not required by the authority
- Type of method:
- other: Differential scanning calorimetry (DSC)
Test material
- Reference substance name:
- 2'-chloroacetoacetanilide
- EC Number:
- 202-269-1
- EC Name:
- 2'-chloroacetoacetanilide
- Cas Number:
- 93-70-9
- Molecular formula:
- C10H10ClNO2
- IUPAC Name:
- 2'-chloroacetoacetanilide
- Details on test material:
- Date of expiry: Extended to 1.8.2010 (as tested by LC/MS and IR)
Storage: RT
Identity: Confirmed by NMR, IR-and mass spectrometry (LC/MS)
Appearance: White powder
Odour: Non-specific
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- 104 °C
- Decomposition:
- yes
- Decomp. temp.:
- >= 193 °C
- Sublimation:
- no
Any other information on results incl. tables
The sharp endothermic peak with onset 103°C is due to melting.
The product starts to decompose in the sealed vial at 193°C with a mean energy of 187 J/g. Additional decomposition energy is released in a second process starting at about 370°C, Taking into account the safety margin of 100 K to the beginning of the reaction in a DSC experiment, the product can be handled safely up to 93°C.
Appearance of sample before Appearance of sample after
measurement measurement
White powder Black matter
Applicant's summary and conclusion
- Conclusions:
- Melting point of the test item is 104°C.
Exothermic decomposition from 193°C (Method DSC, heating rate 3K/min). - Executive summary:
The melting point study was performed similar to the OECD Guideline 102, and according to SOP AA 1020-2007 / AA 1020-1129.
Melting point of the test item is 104°C. Exothermic decomposition from 193°C (Method DSC, heating rate 3K/min).
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