Dry Bulk Solids: chemical
phosphate rock granule to sugar granulated
Flow and physical properties of dry bulk solids for hopper, bin, silo, chute, and conveyor design. Covers grains, aggregates, chemicals, plastics pellets, and biomass. Properties include bulk density (loose/packed), angle of repose, angle of internal friction, Jenike flow factor (ff), Hausner ratio, Carr compressibility index, cohesion class, and moisture sensitivity. Per Jenike Storage and Flow of Solids Bulletin 123, Schulze Powders and Bulk Solids, and CEMA Belt Conveyors.
| material category | material name | angle of internal friction deg (degrees) | angle of repose deg (degrees) | bulk density loose kg m3 (kg/m3) | bulk density packed kg m3 (kg/m3) | carr compressibility index (%) | cohesion class | hausner ratio (dimensionless) | jenike flow factor ff (dimensionless) | moisture sensitivity | standard |
|---|---|---|---|---|---|---|---|---|---|---|---|
| chemical | phosphate rock granule | 40 | 37 | 1,100 | 1,300 | 15 | free flowing | 1.18 | 3 | medium | CEMA Belt Conveyors 7th Ed; Mosaic handling guide |
| chemical | potash granular | 34 | 32 | 1,090 | 1,200 | 10 | free flowing | 1.1 | 4 | medium | CEMA Belt Conveyors 7th Ed; The Mosaic Company handling guide |
| chemical | salt fine | 40 | 38 | 1,000 | 1,200 | 20 | slightly cohesive | 1.2 | 2.5 | high | Jenike (1964); Schulze Powder Technology Handbook 4th Ed |
| chemical | salt rock | 40 | 38 | 1,200 | 1,400 | 17 | free flowing | 1.17 | 3.5 | medium | CEMA Belt Conveyors 7th Ed; Schulze Powder Technology Handbook |
| chemical | soda ash dense | 40 | 38 | 980 | 1,200 | 22 | slightly cohesive | 1.22 | 2.5 | high | Jenike (1964) BMHB-123; Solvay Soda Ash product guide |
| chemical | soda ash light | 48 | 45 | 400 | 600 | 33 | cohesive | 1.5 | 1.5 | high | Jenike (1964) BMHB-123; Solvay Soda Ash product guide |
| chemical | sodium bicarbonate | 40 | 38 | 950 | 1,100 | 16 | slightly cohesive | 1.16 | 2 | medium | Jenike (1964); Schulze Powder Technology Handbook 4th Ed |
| chemical | sodium chloride granular | 32 | 30 | 1,050 | 1,200 | 12 | free flowing | 1.14 | 4 | medium | CEMA Belt Conveyors 7th Ed; Compass Minerals NaCl handling guide |
| chemical | starch corn | 48 | 45 | 480 | 650 | 26 | cohesive | 1.35 | 1.2 | high | Jenike (1964); Freeman Technology FT4 data |
| chemical | sugar granulated | 37 | 35 | 800 | 960 | 20 | free flowing | 1.2 | 3.5 | high | Jenike (1964) BMHB-123; Sugar Engineers Handbook |
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