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EC number: 944-616-6 | CAS number: -
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:
- 31st October 2017 to 1st December 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Identification:
4,4'-(1,3-Phenylenediisopropylidene) diphenylcyanate
Alternative Identification:
Arocy XU 366
Appearance/Physical state:
Yellow viscous liquid
Batch:
FAR366085A
Expiry / Retest date:
29 September 2019
Storage conditions:
Approximately 4 °C, in the dark - Key result
- Remarks on result:
- not determinable
- Remarks:
- The test item decomposed from approximately 242 °C (515 K) at 101.6 kPa
- Conclusions:
- The test item decomposed from approximately 242 °C (515 K) at 101.6 kPa. As a result of this, no value for boiling temperature could be determined at atmospheric pressure.
- Executive summary:
Boiling Point. Decomposed from approximately 242 °C (515 K) at 101.6 kPa by differential scanning calorimetry, designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995 As a result of decomposition, no value for boiling point could be determined.
Reference
Similar thermographic profiles were obtained using air and nitrogen atmospheres; this indicated that the observed decomposition was probably thermal and not oxidative.
The left limit of the exotherm was used rather than the extrapolated onset as significant change in heat flow was already apparent before the extrapolated onset. As such, the lowest left limit has been reported as the approximate onset of decomposition.
Description of key information
The test item decomposed from approximately 242 °C (515 K) at 101.6 kPa. As a result of this, no value for boiling temperature could be determined at atmospheric pressure.
Key value for chemical safety assessment
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