N-[2,5-dichloro-4-(1,1,2,3,3,3-hexafluoropropoxy)-phenyl-aminocarbonyl]-2,6-difluorobenzamide

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

Study period:

21 Jun 2021

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

other: CIPAC method 187 (Fraunhofer diffraction method) using the dry-dispersion unit.

GLP compliance:

yes

Other quality assurance:

other:

Type of method:

Laser scattering/diffraction

Remarks:

using the dry-dispersion unit

Type of particle tested:

primary particle

Type of distribution:

volumetric distribution

Percentile:

D10

Mean:

10.2 µm

St. dev.:

0.63

Key result

Percentile:

D50

Mean:

42.3 µm

St. dev.:

1.57

Percentile:

D90

Mean:

95.9 µm

St. dev.:

1.19

Table 1. Individual results particle size

Determination	Dv(10) [µm]	Dv(50) [µm]	Dv(90) [µm]
1	10.2	43.1	97.0
2	10.1	41.9	94.7
3	10.2	42.0	95.9

Conclusions:

The average particle size results are Dv(10) 10.2 µm, Dv(50) 42.3 µm and Dv(90) 95.9 µm.

Executive summary:

The particle size distribution of the test substance was determined using laser diffraction in accordance with CIPAC method 187 (Fraunhofer diffraction method) using the dry-dispersion unit and GLP principles. The average results are Dv(10) 10.2 µm, Dv(50) 42.3 µm and Dv(90) 95.9 µm.

Description of key information

Particle sizes: Dv(10) 10.2 µm, Dv(50) 42.3 µm and Dv(90) 95.9 µm, CIPAC MT187, particle size analysis by laser diffraction, Das 2021