2-[(4-methoxy-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide

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:

2012

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

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

Principles of method if other than guideline:

Differential scanning calorimetry

Type of method:

thermal analysis

Melting / freezing pt.:

ca. 225 °C

Decomposition:

yes

Decomp. temp.:

ca. 245 °C

The product begins to melt at 225 °C (mean of 2 measurements). Exothermic decomposition starts at 245 °C (mean of 2 measurements). Because of the overlap of endothermic and exothermic processes, the energy measured for the exothermic process (1041 J/g; mean of 2 measurements) is less than the true decomposition energy.

Conclusions:

The product begins to melt at 225 °C (mean of 2 measurements).

Executive summary:

The thermal behaviour of the test substance was investigated by Differential Scanning Calorimetry (DSC). The test item melts under decomposition starting from ca. 225 °C.

Description of key information

The thermal behaviour of the test substance was investigated by Differential Scanning Calorimetry (DSC). The test item melts under decomposition starting from ca. 225 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

225 °C