Registration Dossier
Registration Dossier
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EC number: 854-560-3 | CAS number: 1891094-25-9
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimenta completed on 11th November 2016
- 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 102 (Melting point / Melting Range)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
Test material
- Reference substance name:
- hexasodium 5,5'-{[2,7-disulfonato-9-(2-sulfonatophenyl)-9H-xanthene-9-ylium-3,6-diyl]bis(azanediyl)bis[(2,4,6-trimethyl-3,1-phenylene)aminosulfonyl]}diisophthalate
- EC Number:
- 854-560-3
- Cas Number:
- 1891094-25-9
- Molecular formula:
- C53H38N4Na6O22S5
- IUPAC Name:
- hexasodium 5,5'-{[2,7-disulfonato-9-(2-sulfonatophenyl)-9H-xanthene-9-ylium-3,6-diyl]bis(azanediyl)bis[(2,4,6-trimethyl-3,1-phenylene)aminosulfonyl]}diisophthalate
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
Melting / freezing point
- Decomposition:
- yes
- Decomp. temp.:
- ca. 330 °C
Any other information on results incl. tables
The sample did not melt below 400ºC, however a colour change (red to black) was noted at ca 330ºC. This is recorded as a decomposition.
Applicant's summary and conclusion
- Conclusions:
- There was no melting point before the degradation of test item (at approximately 330°C an apparent decomposition was observed, the red powder became black). Therefore, the melting point (or melting range) of the test item was not determined.
- Executive summary:
Introduction
The study was conducted to determine the melting point or melting range, the capillary method was used following the guidelines set out by Organisation for Economic Co-operation and Development (OECD), Guidelines for Testing of
Chemicals, Guideline No. 102, “Melting Point /Melting Range”; adopted July 27, 1995
Method
A small amount of the test item was heated in the electronic controlled sample block and the temperature around the sample was displayed. The sample was observed visually while raising the temperature. The initial and final melting temperatures were determined.
Results and discussion
No melting point was observed up to 400 ºC, but the colour of test item changed about 330ºC from initial red to black.
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