2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-ethoxyphenyl)-3-oxobutyramide]

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

October 28, 2009

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Valid method according to company guideline

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Report date:

2009

Materials and methods

Principles of method if other than guideline:

Differential scanning calorimetry (DSC)

Type of method:

thermal analysis

Remarks:

DSC

Test material

Test material information

Constituent 1

Reference substance name:

2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-ethoxyphenyl)-3-oxobutyramide]

EC Number:

250-799-7

EC Name:

2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-ethoxyphenyl)-3-oxobutyramide]

Cas Number:

31775-20-9

Molecular formula:

C36H34Cl2N6O6

IUPAC Name:

2,2'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(4-ethoxyphenyl)-3-oxobutanamide]

Results and discussion

Melting / freezing point

Melting / freezing pt.:

310 °C

Decomposition:

yes

Decomp. temp.:

315 °C

Any other information on results incl. tables

The substance begins to melt at 310°C (taken as melting point). An exothermic decomposition starts at 315°C (taken as decomposition temperature). Because of the overlap of endothermic and exothermic processes, the energy measured for the exothermic process (402 J/g) is less than the true decomposition energy.

Applicant's summary and conclusion

Conclusions:

The test item has a melting point of 310 °C and a decomposition temperature of 350 °C.

Executive summary:

The melting point was determined by DSC to be 310 °C with a decomposition temperature of 315 °C.