Reaction Mass of hydrogen bis[4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzene-1-sulphonato(3-)]ferrate(3-) and trisodium bis[4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzene-1-sulphonato(3-)]ferrate(3-)

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

October 9, 2015

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Principles of method if other than guideline:

Test was performed according to the SOP - SRT 028 protocol.

GLP compliance:

no

Type of method:

differential scanning calorimetry

Decomposition:

yes

Decomp. temp.:

> 287 - < 417 °C

The substance shows an endothermic peak associated to the release of water/solvent at about 100°C, followed by degradation between 287 and 417°C.

Conclusions:

The substance shows an endothermic peak due to the release of water/solvent at about 100°C followed by degradation between 287 and 417°C.

Executive summary:

Method

OECD guideline 102.

 

Result

The substance shows an endothermic peak connected to the release of water/solvent at ca. 100°C followed by a degradation between 287 and 417°C.

Description of key information

No melting between 25 and 450°C. The substance decomposes from 250°C.