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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Density

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Description of key information

The density of the liquid reaction mass of ammonium dihydrogenorthophosphate and diammonium hydrogenorthophosphate is 1.29 kg/dm3.
Based on the data on both constituents, the relative density of the solid reaction mass is between 1.62 (value for DAP) and 1.81 (value for MAP).

Key value for chemical safety assessment

Additional information

Liquid form:

The density of the liquid reaction mass is provided in the lead-registrant SDS. In the absence of further details on the experimental method used, a reliability score of 4 was attributed to this data.

Solid form:

The assessment for the solid form is performed based on the reliability 2 information available on both constituents.

All these data were considered in a weight-of-evidence approach.