Registration Dossier
Registration Dossier
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EC number: 425-150-8 | CAS number: 94723-86-1
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:
- 1 996
- Report date:
- 1996
Materials and methods
Test guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- -
- EC Number:
- 425-150-8
- EC Name:
- -
- Cas Number:
- 94723-86-1
- Molecular formula:
- C15 H22 O3 S
- IUPAC Name:
- 2-butanoyl-3-hydroxy-5-(thian-3-yl)cyclohex-2-en-1-one
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Name of test material (as cited in study report): 625-Triketon
Analytical purity: 99.4g/100g
Lot/batch No.: LJ 27881/1
Constituent 1
Results and discussion
Melting / freezing pointopen allclose all
- Melting / freezing pt.:
- 73.6 °C
- Atm. press.:
- 1 013 hPa
- Remarks on result:
- other: modification of the delivery state
- Melting / freezing pt.:
- 57.5 °C
- Atm. press.:
- 1 013 hPa
- Remarks on result:
- other: after the first melting and solidification
Any other information on results incl. tables
DSC results:
Lets you freeze
the sample after the first
melting and then heats up
again, then there is the second
melting point of about 16
°C lower. Re-solidification
and heating does
not change anything more. Therefore
the substance after the first melting
and solidification is in another modification as when delivered.
Melting temperature (extrapolated onset temperature)
| 1. Run | 2. Run | |
| 1. Measurement | + 73,1 °C | + 56,9 °C |
| 2. Measurement | + 74,2 °C | + 57,8 °C |
| 3. Measurement | + 73,8 °C | + 57,7 °C |
| 4. Measurement | + 73,1 °C | + 57,7 °C |
Summary:
73.6
°C (modification
of the delivery state)
and 57.5 °C
(further modification in
which the modification of the delivery
condition
by melting and solidification converts);
each ± 0.6 °
C measurement inaccuracy (See
test results in detail. )
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
