Registration Dossier
Registration Dossier
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EC number: 271-829-5 | CAS number: 68609-44-9
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Gadolinium oxide sulfide (Gd2O2S), ytterbium-doped
- EC Number:
- 271-829-5
- EC Name:
- Gadolinium oxide sulfide (Gd2O2S), ytterbium-doped
- Cas Number:
- 68609-44-9
- Molecular formula:
- (Gd1.7, Yb0.3)O2S
- IUPAC Name:
- Gadolinium oxide sulfide, ytterbium-doped
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
Boiling point
- Key result
- Boiling pt.:
- > 400 °C
- Atm. press.:
- ca. 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 549 °C
- Remarks on result:
- other: No boiling point observed. Decomposition (0.20% weight loss) at 549 °C
Any other information on results incl. tables
Preliminary test: Grey residue remained. Origionally off-white, the change of colour indicating reaction and/or decomposition of the test item.
Main study: After the experiment the sample appeared unchanged.
Applicant's summary and conclusion
- Conclusions:
- The substance has a boiling point above 400 °C. Decomposition was observed at 549 °C.
- Executive summary:
A preliminary test (thermogravimetric analysis) was conducted on 4.91 mg of the substance at a heating rate of 20 °C/minute from 25 °C to 549 °C. At this point 0.20 % weight loss of the test item was observed. Upon cooling to 50 °C the consistency of the test item was determined, of which, indicated reaction and/or decomposition of the test item. The main differential scanning calorimetery study was conducted on 5.03 mg of test substance at rate intervals of 20 °C/minute for a range of 25 to 400 °C. No phase shift was observed within this interval, suggesting the melting point and therefore the boiling point is in excedance of this test range.
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