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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Principles of method if other than guideline:
Counting apparatus
GLP compliance:
no
Type of method:
other: counting
Type of distribution:
volumetric distribution
No.:
#1
Size:
< 10 µm
Distribution:
ca. 3 %

Please see distribution curve (attachment).

Executive summary:

Particle size distribution of finely ground sodium p-chloro-m-cresolate (hydrated form) was determined by counting apparatus. Ca. 3 % (volumetric) of the particles are smaller than 10 µm in diameter.

Description of key information

The substance is hygroscopic and the particles aggregate.

Particles with diameter < 10 µm: ca. 3 % (v/v) (finely ground material)

Additional information

Particle size distribution of finely ground sodium p-chloro-m-cresolate (hydrated form) was determined by counting apparatus. Ca. 3 % (volumetric) of the particles are smaller than 10 µm in diameter.

A further study does not need to be conducted because the experience in production and handling shows that the substance is hygroscopic and the particles aggregate.