Registration Dossier
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EC number: 208-849-0 | CAS number: 543-80-6
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:
- 2018-02-19 to 2018-03-09
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2017-02-28
- Type of method:
- differential scanning calorimetry
- Atm. press.:
- >= 954.1 - <= 996.5 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 440 °C
- Sublimation:
- no
- Remarks on result:
- other: no melting/boiling point up to the decomposition at approx. 440 °C
- Conclusions:
- The test item barium di(acetate) has no melting and point up to its decomposition starting at a temperature of approx. 440 °C at atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1.,A.2. and OECD Test Guideline 102 (1995), 103 (1995).
Reference
In DSC runs PN15120 and PN15121 the test item showed a small exothermic effect in the temperature range of 440 – 460 °C, with a decomposition energy of approx. -20 J/g. An endothermic effect was detected in the temperature range of 460 – 480 °C. In DSC runs PN15139 and PN15140 the test item only showed an endothermic effect in the temperature range of 460 – 500 °C. No further thermal effects were observed up to the test end temperature of 500 and 600 °C, respectively.
Results of the DSC-measurements
| No. | Sample weight [mg] | Onset of Effect [°C] | Range of effect [°C] | Weight loss [mg] | Atmospheric pressure [hPa] |
| PN15120 | 11.95 |
--- 461.79 |
440 – 460 (exo) |
3.27 |
984.1 |
PN15121 |
14.37 |
--- 461.31 |
440 – 460 (exo) 460 – 480 (endo) |
2.88 |
984.1 |
PN15139 |
12.18 |
463.63 |
460 – 500 (endo) |
2.98 |
996.5 |
PN15140 |
16.68 |
462.15 |
460 – 490 (endo) |
3.92 |
996.5 |
Due to the fact the test item showed a decomposition before reaching its melting point, the test item has no melting or boiling point up to its decomposition starting at a temperature of approx. 440 °C.
Description of key information
The substance decomposes before boiling at 440°C in accordance with DSC analysis.
Key value for chemical safety assessment
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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