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Bulk density, particle density and mean particle size of common materials used in bulk solids handling

Including portland cement, coal, iron powder, PVC, wheat flour

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1. Data table


Note : orders of magnitude only, of course variying depending on the actual specification of materials

Material Mean particle size in microns Bulk density in kg/m3 Particle density in kg/m3
Alumina


Sandy 79 1040 3600
Calcined 66 750 3920
Hydrate 60 1110 2420
Aluminium fluoride 1420
Ammonium chloride 900 1500
Barytes 12 1590 4250
Bentonite 24 760 2300
Cement – Ordinary Portland 14 1070 3060
Coal


Pearls 10 000 690 1320
Minus 25 mm 5 600 750 1400
Granular


As supplied 778 870 1550
Degraded 146 700 1550
Pulverized 84 393 1550
Coke – Fines 800
Copper concentrate 55 1660 3950
Fluidized bed combustor ash 1 200 1270 2500
Fluorspar 66 1580 3700


Fly ash


Coarse 110
Fine 25 700 1700
Iron powder 64 2380 5710
Magnesium sulphate 370 1380 2355
Pearlite 200 100 800
Polyethylene – pellets 4 000 540 910
Potassium chloride 580 1180 1990
Potassium sulphate 170 1240 2625
PVC


Powder 90 615 990
Resin 120 490 1400
Silica sand 70 1250 2630
Sodium carbonate – soda ash


Heavy 340 1160 2500
Light 115

Sodium chloride – salt 390 1220 2630
Sugar – granulated


Fresh 460 890 1580
Degraded 170 655 1580
Terephthalic acid – PTA 930
Wheat flour 90 510 1470
Zircon sand 120 2600 4600


Source : Pneumatic conveying design guide, Mills