Propanol, oxybis-, polymer with 1,1'-methylenebis[4-isocyanatobenzene]

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

07/07/2009 – 08/07/2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes

Type of method:

method to determine freezing temperature

Melting / freezing pt.:

74.7 °C

Remarks on result:

other: Run 1 (10.2 g sample used): Initial Freezing Temperature

Melting / freezing pt.:

74.6 °C

Remarks on result:

other: Run 2 (10.4 g sample used): Initial Freezing Temperature

Melting / freezing pt.:

-12.2 °C

Remarks on result:

other: Run 1 (10.2 g sample used): Final Freezing Temperature

Melting / freezing pt.:

-12.2 °C

Remarks on result:

other: Run 2 (10.4 g sample used): Final Freezing Temperature

Sample was quickly transferred into the freezing point apparatus for testing after sample preparation. Initial crystallization was observed at 74.7 °C and 74.6 °C respectively. At final temperature, sample surface did not move when sample tube was tilted at an angle of 90°.

Conclusions:

The initial and final freezing temperatures noted were 74.7 and -12.2 °C respectively.

Description of key information

The melting point is -20 ˚C.

 

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-20 °C