SULFATE OF POTASH
CHOICE GRANULAR
0-0-50 SOP
 (Typical SGN 146, Typical UI 66)
Particle Size Distribution
Tyler Mesh
US Mesh
 Opening
(mm)		 Typical Range
(% cum)		 Typical
(% cum)
10
12
 1.70 0-15 6
12
14
 1.40 50-70 60
14
16
 1.18 85-95 90
16
18
 1.00 95-99 97
Physical Properties
  Typical
Bulk Density, loose 
• lb/cu foot 75
• kg/cu meter 1200
Angle of Repose 35°
Solubility
0.8 lb/gal 55°F (13°C)
0.9 lb/gal 66°F (19°C)
1.0 lb/gal 77°F (25°C)
Chemical Analysis
Component Symbol Typical (%) Guarantee (%)
Potassium Oxide Equivalent
(Soluble Potash)		 K2O 50.8 50.0 min.
Sulfur S 17.5 17.0 min.
Sulfate SO4 52.5  
Chloride Cl 0.5 0.8 max.
Magnesium Mg 0.4  
Moisture (105°C) H2O 0.15  
pH (5% Solution) pH 8.0  
Product analyses are typical. Handling and transportation may affect the analysis of the delivered product.
 
CHOICE GRANULAR SOP is suitable for blends typically used by the turf and ornamental markets. It is also well suited for direct application fertilization, especially slow release.

CHOICE GRANULAR SOP is produced naturally near Ogden, Utah and available in 50 pound bags, 2,000 pound bags, and in bulk via truck & rail. Great Salt Minerals Corporation does not use animal manure or any form of waste in the production of SOP.

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