2-Naphthalenol, 1-[2-[2-ethyl-4-[2-(2-ethylphenyl)diazenyl]phenyl]diazenyl]-, ar-heptyl derivs.

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Test material

Test material information

1

Reference substance name:

Reaction products of 2-Ethylaniline with heptyl naphthalen-2-ol

Cas Number:

1401000-07-4

Molecular formula:

Not applicable (UVCB Substance)

IUPAC Name:

Reaction products of 2-Ethylaniline with heptyl naphthalen-2-ol

Test material form:

solid

Specific details on test material used for the study:

Batch number: 80-47-16

Results and discussion

Melting / freezing point

Melting / freezing pt.:

> 50 - < 200 °C

Atm. press.:

1 atm

Decomposition:

yes

Decomp. temp.:

281.4 °C

Any other information on results incl. tables

The following behaviour was noted.

 50 - 200°C: Slow exothermic reaction showing a glass transition of the test item at 137.8°C (Onset: 71.6°C, Enthalpy of reaction: -2352 J/g).

 230 - 320°C: Exothermic reaction showing a probable degradation of the test item at 281.4°C (Onset: 258.6°C, Enthalpy of reaction: -2455 J/g). The degradation can be supposed by the concurrent mass loss.

Applicant's summary and conclusion

Conclusions:

The melting point of the test item is between 50 and 200°C. A glass transition occurs at 137.8°C.