1,2,3-Propanetricarboxylic acid, 2-hydroxy-, chromium(3+) salt (1:1)

Particle size distribution (Granulometry)

Link to relevant study record(s)

Reference

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Justification for type of information:

Testing performed by manufacturer using recognised methods.
The substance is typically supplied in water and was dried specifically for testing.

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)

Principles of method if other than guideline:

Seiving methods

GLP compliance:

no

Type of method:

sieving

Type of particle tested:

primary particle

Type of distribution:

mass based distribution

Specific details on test material used for the study:

The substance is produced as a solution and it was dried

Mass median aerodynamic diameter:

> 250 µm

Key result

Percentile:

D25

Mean:

> 250 µm

Remarks on result:

other: standard deviation not determined

No.:

#1

Size:

< 250 µm

Distribution:

ca. 22 %

No.:

#2

Size:

< 63 µm

Distribution:

< 2 %

The particle size was found to be predominatly > 250 micron. An assessment of the dust content was made on the basis of particles passing through a 63 micron sieve. The amount by weight of particles of less than 63 microns was < 2 %

Conclusions:

The particle size was found to be > 250 micron.

Description of key information

The particle size was found to be predominantly > 250 micron with ca 78% not passing through this seive

An assessment of the dust content was made on the basis of particles passing through a 63 micron sieve. The amount by weight of particles of less than 63 microns was < 1.6 %