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Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2020
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: This study does not follow normalised testing guideline and GLP, but was performed according to an acceptable method.
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
Not specified
Deviations:
not specified
Principles of method if other than guideline:
Laser diffraction particle size analysis was applied on a dispersion of the powder and three measurements were performed.
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D10
Mean:
3 µm
St. dev.:
0.19
Percentile:
D50
Mean:
17.6 µm
St. dev.:
4.2
Percentile:
D90
Mean:
561 µm
St. dev.:
27.2

The table below summarizes the individual results, the mean value and the standard deviation for the Mean diameter, D10, D50 (median) and D90:

 

Mean diameter (µm)

D10

(µm)

D50 (median)

(µm)

D90

(µm)

Trial 1

10.36

2.81

14.36

549.4

Trial 2

10.52

2.86

14.83

534.7

Trial 3

12.21

3.24

23.48

598.4

Mean value

11.03

3.0

17.6

560.8

Standard deviation

0.84

0.19

4.2

27.2

Conclusions:
The mean D50 of sodium bis(trifluoromethanesulfonyl)imide was found to be 17.6 µm.
Executive summary:

Laser diffraction particle size analysis was applied on a dispersion of the powder. Three measurements were performed.

The D50, D10 and D90 values were determined at 17.6, 3.0 and 561 µm, respectively. The mean diameter was 11.0 µm.

Description of key information

The mean D50 of sodium bis(trifluoromethanesulfonyl)imide was found to be 17.6 µm.     
    
    
    
  
  
    
    
    
    

odium Bis(trifluoromethanesulfonyl)imide

Sodium Bis(trifluoromethanesulfonyl)imide

was found to be 8.4 µm.

Additional information

One reliable key study is available for this endpoint. Laser diffraction particle size analysis was applied on a dispersion of the powder and three measurements were performed.

The D50, D10 and D90 values were determined at 17.6, 3.0 and 561 µm, respectively. The mean diameter was 11.0 µm.