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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Magnesium hydrogen orthophosphate (CAS 7757-86-0) is an inorganic magnesium and phosphate salt that does not undergo biodegradation. In release to water magnesium hydrogen orthophosphate dissociates to magnesium ions and phosphate species, mostly hydrogen phosphate and dihydrogen phosphate under environmental conditions. The magnesium cation and the hydrogen phosphate anion have no potential mechanism for further hydrolysis. Photodegradation is not relevant for the substance.