Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well performed study according to acknowledged standard

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: company SOP
Principles of method if other than guideline:
Differential scanning calorimetry (DSC)
GLP compliance:
no
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of ammonium 4-amino-3-nitrobenzenesulfonate and sodium 4-amino-3-nitrobenzenesulfonate
EC Number:
700-384-6
Cas Number:
82324-60-5
Molecular formula:
C6H5N2O5S.H4N C6H5N2O5S.Na
IUPAC Name:
Reaction mass of ammonium 4-amino-3-nitrobenzenesulfonate and sodium 4-amino-3-nitrobenzenesulfonate
Test material form:
solid: bulk

Results and discussion

Melting / freezing point
Melting / freezing pt.:
252 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Decomp. temp.:
ca. 257 °C
Sublimation:
no

Any other information on results incl. tables

An exothermic decomposition starts at 257°C. Because of the overlap of endothermic and exothermic processes, the energy measured for the exothermic process (1254 J/g) . The endothermic peak at 252°C is the melting point.

Applicant's summary and conclusion

Conclusions:
The melting point of the substance is 252°C:
Executive summary:

The melting point of the substance was determined by DSC and was found to be 252 °C.