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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information


A study was performed to determine the rate of hydrolysis of HMX as a function of pH, according to OECD Guideline 111. HMX is stable at pH 4, 7 and 9. Preliminary testing was carried out at pH 4, 7 & 9. Results indicated the need for extended testing at pH 9.

However T½value of >1 year were obtained at pH 9.


HMX is not readily biodegradable.


No study is required, as HMX has no potential to bioaccumulate ( Log Kow=0.165).

Transport and distribution

No study is required, as HMX has no potential to adsorbe to soil ( Log Kow=0.165, low Log Koc)