Perhydroimidazo[4,5-d]imidazole-2,5-dione

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:

2013

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

not specified

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

> 266 - < 278.2 °C

Decomposition:

yes

Decomp. temp.:

> 278.2 - < 337 °C

Sublimation:

no

Test performed by DSC Q100 TA Instrument

Conditions:

Initial temperature: 25 °C

Temperature Gradient: 3 °C/min

Final temperature: 350 °C

Conclusions:

The test substance has a melting point of 287.2°C

Executive summary:

A test was done following guideline EU Method A.1 (DSC) from this it was shown that the melting point of the test substance was 278.2°C. Further to this it was shown the test substance decomposes above this temperature (278.2°C - 337°C).

Description of key information

A test was done following guideline EC Method A.1 from this it was shown that the melting point of the test substance was 278.2°C. Further to this it was shown the test substance decomposes above this temperature (278.2°C - 337°C).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

272 °C