Registration Dossier
Registration Dossier
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EC number: 276-067-7 | CAS number: 71839-81-1
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Well performed study according to accepted standard
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:
- other: company SOP
- GLP compliance:
- no
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- Sodium bis[3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-N-methylbenzene-1-sulphonamidato(2-)]chromate(1-)
- EC Number:
- 276-067-7
- EC Name:
- Sodium bis[3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-N-methylbenzene-1-sulphonamidato(2-)]chromate(1-)
- Cas Number:
- 71839-81-1
- Molecular formula:
- C34H28Cl2CrN10O8S2.Na
- IUPAC Name:
- Chromate(1-), bis[3-[2-[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-(oxo-kO)-1H-pyrazol-4-yl]diazenyl-kN1]-4-(hydroxy-kO)-N-methylbenzenesulfonamidato(2-)]-, sodium (1:1)
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- > 278 °C
- Atm. press.:
- ca. 1 atm
- Decomposition:
- yes
- Decomp. temp.:
- 278 °C
- Sublimation:
- no
Applicant's summary and conclusion
- Conclusions:
- The substance decomposes at about 278°C and shows no melting point before.
- Executive summary:
The melting point of the substance should be determined by DSC (Mettler, DSC 821e, 25 – 450°C, 3 K/min, sealed glass vial in air).
No melting but only decomposition could be observed at 278°C.
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