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EC number: 308-876-9 | CAS number: 98903-75-4
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:
- 2012-05-29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Version / remarks:
- , 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- , 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Atm. press.:
- 1 013 mBar
- Decomposition:
- yes
- Decomp. temp.:
- 320 °C
- Remarks on result:
- other: only atmospheric pressure was stated, 1013mbar were assumed
- Conclusions:
- Vanadium, oxalate complexes decomposes at 320 °C.
Reference
In the thermograms of the DSC runs in open crucibles an endothermic effect was detected in the temperature range of 90 – 180 °C and exothermic effects were observed in the temperature range of 230 – 380 °C. The latter are most likely due to a reaction of the sample with air (oxygen) as these effects were not observed in tests with closed crucibles under nitrogen
No |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
1 |
12.93 |
132 |
90 - 190 |
7.57 |
| 2 | 12.33 | 137 220 |
90 - 190 220 - 370 |
7.01 |
The following effects were noted in two DSC-measurements in glass crucibles with oxygen:
1. Endothermic effect due to evaporation of H2O in the temperature range up to 190 °C.
2. Exothermic effect due to thermal decomposition in the temperature range of 220 ‑ 320 °C.
3. Exothermic effect due to thermal decomposition in the temperature range of 320 ‑ 380 °C.
Description of key information
Vanadium, oxalate complexes decomposes at 320 °C.
Key value for chemical safety assessment
Additional information
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