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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Particle size distribution (Granulometry)

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Description of key information

Particle size distribution of the test substance:

< 10 %: 69.27 µm

< 25 %: 131.3 µm

< 50 %: 213.6 µm

< 75 %: 309.2 µm

< 90% : 406.1 µm

Additional information

In the key study, the particle distribution of trisodium nitrilotriacetate was measured by laser diffraction. A mean particle size is 173.4 µm, with a standard deviation of 2.532. Less than 1.21% of measured particles were in the respirable fraction (less than 4 µm diameter, and less than 2.73% are less 10 µm diameter.

The supporting study (BASF, 1997) confirms the findings of the key study.