Registration Dossier
Registration Dossier
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EC number: 209-693-6 | CAS number: 590-90-9
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Principles of method if other than guideline:
- The melting temperature was measured by Differential Scanning Calorimetry.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Remarks:
- Differential Scanning Calorimetry
Test material
- Reference substance name:
- 4-hydroxybutan-2-one
- EC Number:
- 209-693-6
- EC Name:
- 4-hydroxybutan-2-one
- Cas Number:
- 590-90-9
- Molecular formula:
- C4H8O2
- IUPAC Name:
- 4-hydroxybutan-2-one
- Test material form:
- other: liquid
- Details on test material:
- - Name of test material (as cited in study report): 4-Hydroxybutan-2-one
- Molecular formula (if other than submission substance): C4H8O2
- Molecular weight (if other than submission substance): 88.11 g/mol
- Physical state: liquid
- Analytical purity: 96.1 % (GC area-%, corrected for the water content, see study no. 14L00475)
- Lot/batch No.: 10781727
- Storage condition of test material: Ambient temperature
Constituent 1
Results and discussion
Melting / freezing pointopen allclose all
- Melting / freezing pt.:
- < -100 °C
- Melting / freezing pt.:
- -123 °C
- Remarks on result:
- other: glass transition temperature
- Melting / freezing pt.:
- -109 °C
- Remarks on result:
- other: glass transition temperature
Any other information on results incl. tables
Results in detail
Melting temperature
No melting temperature was found between -100 °C and 50 °C, even by addition of aluminum oxide powder as crystallization aid.
Observed thermic processes
Below -100 °C, two steps were found in the measuring curves. Despite the fact that the signal below -100 °C might be superimposed
by a transient response signal, the stability (determination A and B and Test 1) and size of the two steps at around -123 °C and -109 °C
support the interpretation as of two glass transitions.
| determination | glass transition temperature; 1st heating [°C] |
| Test 1 | -123.0 / -107.2 |
| A | -122.7 / -109.9 |
| B | -123.0 / -111.1 |
| mean value | -123 / -109 |
The estimated accuracy is ± 2 °C.
Applicant's summary and conclusion
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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