Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Partition coefficient

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

In accordance with column 2 of REACH Annex VII, the test cannot be performed, as the substance decomposes in water within a hour (half-time approx. 1 hour). The calculated partition coefficient (KOWWIN v 1.66) on the basis of the structural formula of 1,5 -naphthylene diisocyante is 4.37 (Currenta, 2010). The measured log Pow of the corresponding amine is 0.91 (MITI, 1992). 

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
25 °C

Additional information

The substance hydrolyses rapidly within 1 hour. Therefore, an experimental study with 1,5-naphthylene diisocyante is scientifically unjustified.