2-Naphthalenesulfonic acid, 5(or 8)-amino-, coupled with diazotized aniline, diazotized, coupled with diazotized 4-aminobenzenesulfonic acid and m-phenylenediamine

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:

February 25, 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Principles of method if other than guideline:

Study conducted according to the internal method SOP-STR 028

GLP compliance:

no

Type of method:

thermal analysis

Remarks:

Differential Scanning Calorimetry

Decomposition:

yes

Decomp. temp.:

> 213 - < 373 °C

Between 30 - 140°C, there is release of water/solvent, followed by a degradation between 213 and 373°C.

Conclusions:

The test substance decomposes before melting at temperature between 213 and 373°C.

Executive summary:

Method:

The test was performed according to internationally accepted testing procedures, using the Differential Scanning Calorimetry method for the analysis.

Result:

Between 30 - 140°C, there is release of water/solvent, followed by a degradation between 213 and 373°C (onset at 244.1°C, enthalpy = 178.3 J/g).

Description of key information

OECD guideline 102 - Decomposition before melting between 213 and 373°C (onset at 244.1°C, enthalpy = 178.3 J/g).