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EC number: 270-648-9 | CAS number: 68475-50-3
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- 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: Experimental data
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Principles of method if other than guideline:
- The melting point determination of Test item Tris[5-amino-4-hydroxy-3- (phenylazo)naphthalene-2,7-disulphonato(2-)]dialuminium (CAS No. 68475-50-3 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block.
- GLP compliance:
- not specified
- Type of method:
- capillary method
- Decomposition:
- yes
- Decomp. temp.:
- 342.75 - 346.75 °C
- Sublimation:
- no
- Remarks on result:
- other: the test chemical started decomposing with colour change from red black at 342.75-346.75° without melting
- Conclusions:
- The melting point determination of Tris[5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7- disulphonato(2-)]dialuminium (CAS No. 68475-50-3) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean Decomposition Range (°C) was found to be 342.75-346.75°C at 971.9hPa.
- Executive summary:
The melting point determination of Tris[5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7- disulphonato(2-)]dialuminium (CAS No. 68475-50-3) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean Decomposition Range (°C) was found to be 342.75-346.75°C at 971.9hPa.
Reference
Method Details | Observations | Remarks if, any | |
Guideline | OECD 102 | - |
|
Method | Capillary/metal block | - |
|
Principle of method | The temperature at which a solid becomes a liquid at standard atmospheric pressure | - |
|
Grinding of Test item done |
| No |
|
Atmospheric pressure | hPa | 971.9hPa |
|
Decomposition | Decomposition temperature (°C), if applicable | YES |
|
Sublimation | Sublimation temperature (°C), if applicable | No |
|
Mean Decomposition Range (°C)(RESULT) | °C | 342.75-346.75°C |
|
Description of key information
The melting point determination of Tris[5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7- disulphonato(2-)]dialuminium (CAS No. 68475-50-3) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean Decomposition Range (°C) was found to be 342.75-346.75°C at 971.9hPa.
Key value for chemical safety assessment
Additional information
The melting point determination of Tris[5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7- disulphonato(2-)]dialuminium (CAS No. 68475-50-3) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean Decomposition Range (°C) was found to be 342.75-346.75°C at 971.9hPa.
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