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Particle size distribution (Granulometry)

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Description of key information

Divanadium pentaoxide - powder:  D50 = 1 - 84 µm

Divanadium pentaoxide - granules: D50 = 151.6 μm

Additional information

Divanadium pentaoxide - powder (range of three representative powders)

D10 = 0.5 -209 µm

D50 = 1.3 - 84 µm

D90 = 6 -197 µm

Divanadium pentaoxide - granules

D10 = 135 µm

D50 = 263 µm

D90 = 501 µm 

MMADs (bi-modal distribution) of airborne fraction (distribution fitted to cascade impactor data, percentile in parentheses indicates weighting factor) and Geometric standard deviation of MMAD (GSD)

Compound

D10

[µm]

d50

[µm]

D90

[µm]

P1*

[%]

MMAD1

[µm]

GSD1

[µm]

P2*

[%]

MMAD2

[µm]

GSD2

[µm]

V2O5 –Granules

134.7

262.8

501.1

0.9

8.87

2.71

99.1

32.20

1.52

V2O5– Powder a

0.56

8.43

51.12

2.2

4.80

2.03

97.8

23.06

1.27

V2O5- Powder b

0.5

1.3

6.1

3.5

4.99

2.03

96.5

44.78

1.85

V2O5– Powder c

2.09

83.24

196.63

7.9

7.72

2.56

92.1

32.56

1.54

* weighing factor for the first and second distribution of a bimodal lognormal distribution