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Physical & Chemical properties

Flash point

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Description of key information

The flashpoint of MDI mixed isomers is 208.5°C at 1013.25 hPa (Brixham 2010) following EU Method A.9 (closed cup).

Key value for chemical safety assessment

Flash point at 101 325 Pa:
208.5 °C

Additional information

An experimental flashpoint value is determined for MDI mixed isomers following EU method A.9 (closed cup). The flashpoint was determined to be 208.5 degrees Celsius. This is in line with the data found for 4,4'-MDI and oMDI provided in Fisk and Langner report (1995), which were 211 and 208 degrees Celsius, respectively.