N,N'-methylenebis[methacrylamide]

Flash point

Administrative data

Endpoint:

flash point of flammable liquids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the flash point is only relevant to liquids and low melting point solids

Justification for type of information:

The study does not need to be conducted because the substance is not a liquid, but solid at 20 °C.

Cross-reference

Reason / purpose for cross-reference:

reference to other study

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2008-11-06 to 2008-11-07

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

adopted 27th July 1995

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

December 1992

GLP compliance:

not specified

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

ca. 163 °C

Atm. press.:

1 015 hPa

Decomposition:

yes

Decomp. temp.:

ca. 165 °C

The DSC measurements were performed twice, one run for the lower temperature range on the power compensation DSC Pyris 1 and one for the higher temperature range on the heat flux DSC, using a crucible with a perforated lid. 

Interpretation of the differential scanning calorimeter curve: In the first heating cycle the DSC-curve shows an endothermic heat flow with onset at 163 °C due to melting of the sample. The transition to the liquid phase is superimposed by an exothermic process, most probably the decomposition.

Conclusions:

Melting Point: 163 °C with decomposition.

Executive summary:

The melting temperature of N,N'-methylenebis[methacrylamide] was determined by differential scanning calorimetry according to EN ISO 11357-3 (Plastics-Differential Scanning Calorimetry- Part 3 Determination of temperature and enthalpy of melting and crystallization) and EEC-Directive 92/69 EEC, Part A.2 (Methods for the determination of physico-chemical properties, A.1 „Melting temperature“, EEC Publication No. L383, December 1992). The melting point was 163 °C with decomposition.