4,4'-Methylenediphenyl diisocyanate, oligomers

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:

Start date of the experimental work: 12 June 2009 and Completion date of the experimental work: 02 July 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 (incl. QA statement)

Type of method:

method to determine freezing temperature

Key result

Melting / freezing pt.:

>= -17 - <= -4.7 °C

Remarks on result:

other: Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing point.

Full test results:

Run number	1	2
Mass of sample used (g)	12.2	12.2
Initial Freezing temperature (°C)	-5.0	-4.7
Final Freezing temperature (°C)	-17.0	-17.0

Result: -17.0 to -4.7°C

The mean of at least two measurements, which are in the range of the estimated accuracy, is reported as the freezing temperature/range.

Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing point.

Conclusions:

Result : -17.0 to -4.7°C.
Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing point.

Description of key information

The freezing range is -17 to -4.7 ˚C (< 0°C).

Sample becomes very viscous at lower temperatures and forms a waxy substance at the final freezing point.