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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

Studies tend to indicate that polyphosphates are not absorbed as such in the intestinal tract, but they can be hydrolysed in vivo by enzymes with the formation of monophosphates, mainly orthophosphate and possibly pyrophosphate, which are then absorbed (Gosselin et al., 1952; Ebel, 1958). This is further supported by the fact that systemic effects of polyphosphates are very similar to those of orthophosphates. It was estimated that approximately two-thirds of ingested phosphates is absorbed from the gastro-intestinal tract.

No data have been identified with regard to dermal absorption properties. It is generally considered that the percutaneous absorption of salts or ionic substances is limited