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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Administrative data

Link to relevant study record(s)

Description of key information

No study has been performed on trisodium orthophosphate for the endpoint 'explosiveness'. An adaptation from the standard testing regime is justified on the following basis:
According to the guidance on information requirements and chemical safety assessment Chapter R.7a section 7.1.11, the first step of the screening procedure is to examine the chemical structure and check for the presence of groups associated with explosive properties. If the substance does not contain any groups associated with explosivity then a negative result is likely. An expert review of the substance itself and available data concludes that trisodium orthophosphate is incapable of rapid decomposition with evolution of gases or release of heat and therefore it is considered that trisodium orthophosphate does not present a risk of explosion and as such further testing for explosive properties is not scientifically justified.

Key value for chemical safety assessment

non explosive

Additional information

Justification for classification or non-classification