Reaction mass of 4-[[4-(aminocarbonyl)phenyl]azo]-N-(2-ethoxyphenyl)-3-hydroxynaphthalene-2-carboxamide and 4-[[4-(aminocarbonyl)phenyl]azo]-3-hydroxy-N-(2-methoxyphenyl)naphthalene-2-carboxamide

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:

22 Mar 2010

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Comparable to guideline study (EU A.1) with acceptable restrictions

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Principles of method if other than guideline:

DSC measurement according to company guideline.

Type of method:

thermal analysis

Decomposition:

yes

Decomp. temp.:

ca. 288 °C

There is no endothermic effect (melting/boiling) in the DSC curves before decomposition.

The product starts to decompose in the sealed vial at ca. 288 °C with a mean energy of 101 J/g (2 measurements).

Conclusions:

The test substance does not melt. Decomposition takes place at ca. 288 °C.

Executive summary:

The thermal behaviour of the test substance was investigated by Differential Scanning Calorimetry (DSC). The test substance does not melt. Decomposition takes place at ca. 288 °C.

Description of key information

The thermal behaviour of the test substance was investigated by Differential Scanning Calorimetry (DSC). The test substance does not melt. Decomposition takes place at ca. 288 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

288 °C