Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Appearance / physical state / colour

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Administrative data

Link to relevant study record(s)

appearance / physical state / colour
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
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
no guideline followed
Principles of method if other than guideline:
Not applicable.
GLP compliance:
yes (incl. QA statement)
Physical state at 20°C and 1013 hPa:
Substance type:
The test item is a liquid.

Description of key information

All substances of the MDI category are (viscous) liquids under room temperature, except 4,4’-MDI, 2,4’-MDI and 2,2’-MDI which are solids. MDI Mixed Isomers is a liquid at room temperature as the combination of 4,4’-MDI and 2,4’-MDI is a eutectic system, which makes it a liquid with a melting temperature around 10°C. Addition of condensation adducts and glycol adducts also decreases the melting point and hence the MDI substances of all other subgroups are liquids at room temperature.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:

Additional information