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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Typically the purity of trisodium trimetaphosphate is > 90% (dry weight, after excluding water). All impurities present at >1% are other inorganic phosphates (typically sodium linear chain phosphates) or other related inorganic substances. There are no hazardous impurities present within the substance at levels > 0.1%.

Trisodium trimetaphosphate has a melting point of > 450°C and is considered to be moderately soluble in water (265 g/L at 20 ± 0.5°C). In addition, Trisodium trimetaphosphate is not considered to possess any of the following hazardous physico-chemical properties; autoflammability and/or self-ignition, flammability, explosiveness and oxidising properties.