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EC number: 241-168-7 | CAS number: 17096-47-8
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:
- 16 October 2019 - 17 October 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
- Specific details on test material used for the study:
- TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: the test substance was phlegmatized (15 mass% water addition) for the time of transportation. Before the study performance, the sample was dried at room temperature under vacuum conditions until a constant mass was obtained. The water content after drying process was determined using Karl Fischer method. The purity of test item after drying process was 99.88% ± 0.01%, and water content dropped to 0.391% ± 0.003%. - Key result
- Melting / freezing pt.:
- 37.2 °C
- Decomposition:
- no
- Remarks on result:
- other: Average ± standard deviation = 37.2 ± 0.1 ºC
- Conclusions:
- The melting point of the test item is 37.2ºC.
- Executive summary:
The study to determine the melting point of the test item was performed by capillary tube in heated metal block method according to OECD TG 102 / EU Method A.1 (GLP study). In a preliminary test, at about 36.0ºC when heated at 10.0ºC per minute the sample started to melt. Afterwards, 3 series of melting point measurements were performed in the temperature range of 30.0-400.0ºC. The heating rate was 0.5°C/min. Samples number 1, 2 and 3 have melted at 37.1, 37.2 and 37.2°C, respectively. The melting point is 37.2 ± 0.1 °C.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- according to guideline
- Guideline:
- other: National Military Standard of China, Explosive Test Method GJB 772A-97, 1997
- GLP compliance:
- not specified
- Key result
- Melting / freezing pt.:
- >= 38 - <= 40 °C
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of the test item was determined to be between 38 and 40ºC.
- Executive summary:
The study to determine the melting point of the test item was performed according to the GJB772A-1997 standard. The melting point was determined to be between 38 and 40ºC.
- Endpoint:
- melting point/freezing point
- Type of information:
- other: review article
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Principles of method if other than guideline:
- Not specified.
- GLP compliance:
- not specified
- Key result
- Melting / freezing pt.:
- >= 38 - <= 40 °C
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of the test item is between 38 and 40ºC.
- Executive summary:
The melting point of the test item is between 38 and 40ºC.
Referenceopen allclose all
In a preliminary test, at about 36.0ºC when heated at 10.0ºC per minute (temperature range 25-400ºC) the sample started to melt. Afterwards, 3 series of melting point measurements were performed in the temperature range of 30.0-400.0ºC. The heating rate was 0.5°C/min. Samples number 1, 2 and 3 have melted at 37.1, 37.2 and 37.2°C, respectively.
Description of key information
Key study. Method according to OECD 102 / EU Method A.1, GLP study. The melting point of the test item is 37.2ºC.
Supporting study. Method according to the GJB772A-1997 standard. The melting point of the test item was determined to be between 38 and 40ºC.
Supporting study. Secondary literature. The melting point of the test item is between 38 and 40ºC.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 37.2 °C
Additional information
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.
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