Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 701-072-2 | CAS number: -
Flammability
Administrative data
Link to relevant study record(s)
Description of key information
Waived: lack of pyrophoric functional groups.
4,4'-MDI is considered to be:
* not highly flammable
* Not flammable in contact with water
* not pyrophoric
The addition of the prepolymer is not expected to change the flammability results.
Key value for chemical safety assessment
- Flammability:
- non flammable
Additional information
In accordance with Column 2 of REACh Annex VII, and with ECHA Ch 7a guidance, the testing of flammability on contact with water is not necessary as the MDI/DPG/TPG substance does not contain known pyrophoric groups or compounds as listed in Bretherick's Handbook of Reactive Chemical Hazards. The lack of flammable properties is demonstrated through testing of the analogous substance 4,4'-MDI. Three flammability tests were performed with the test substance, 4,4'-MDI. In the first test, flammability of solids was assessed according to EU Method A.10 (Baker, 2010). In the second test, flammability in contact with water was assessed according to EU method A.12 (Baker, 2010). The third test assessed the pyrophoric properties of the test substance according to EU method A.13 (Baker, 2010). The results of these tests were that the test substance is not flammable, not flammable in contact with water and has no pyrophoric properties.
The addition of the prepolymer is not expected to change the flammability results.
Justification for classification or non-classification
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
