Registration Dossier
Registration Dossier
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EC number: 223-264-0 | CAS number: 3792-50-5
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 23.08.2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- method according to Siwoloboff
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- >= 140 °C
- Conclusions:
- The test item decomposes above 140 °C
- Executive summary:
A study was conducted according to OECD test guideline 103, Regulation (EC) No 440/2008 method A.2 and EPA OCSPP test guideline 830.7220 to determine the boiling point of the test item using the method according to Siwoloboff. Starting the measurement at the melting point of test item at 140 °C the test item was melted, its colour became transparent, moved towards the upper part of the sample tube and hardened. Based on this observation it was concluded that the test item started to decompose immediately after melting. Thus, no boiling point could be determined.
Reference
Determination of the boiling point of the test item according to the EC A.2 and OECD 103 guideline using a method following Siwoloboff with automatic photo-electrical detection was technically not feasible because there was no liquid phase in the sample tube.
Starting the measurement at the melting point of test item (melting point determined in the range of 140 – 149 °C under Study No.: 897-102-2411), at 140 °C the test item was melted, its colour became transparent, moved towards the upper part of the sample tube and hardened. Therefore, there was no liquid phase in the sample tube.
Description of key information
The test item decomposes above 140 °C.
Key value for chemical safety assessment
Additional information
A study was conducted according to OECD test guideline 103, Regulation (EC) No 440/2008 method A.2 and EPA OCSPP test guideline 830.7220 to determine the boiling point of the test item using the method according to Siwoloboff (reference 4.3 -1). Starting the measurement at the melting point of test item at 140 °C the test item was melted, its colour became transparent, moved towards the upper part of the sample tube and hardened. Based on this observation it was concluded that the test item started to decompose immediately after melting. Thus, no boiling point could be determined.
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