Protassium+ SOP 3IX 0-0-53 Potassium Sulfate

Protassium+ SOP 3IX 0-0-53 — Highest-Purity Crystalline Potassium Sulfate

Protassium+ SOP 3IX is the highest-purity crystalline sulfate of potash available commercially, produced via ion exchange to deliver 53% soluble potash (K₂O) and 18% sulfate sulfur. With the lowest chloride content and lowest salt index of any SOP on the market, 3IX is the preferred potassium sulfate for high-value crop production, sensitive hydroponic systems, and precision liquid blend formulation.

The ultra-fine crystalline form (very low SGN) ensures rapid, complete dissolution with no residue — making 3IX the ideal potassium and sulfur source for fertigation injection systems, recirculating hydroponic programs, and custom liquid fertilizer blending.

Why 3IX Over Standard SOP

• 53% K₂O — highest potassium content of any SOP formulation (vs. 50% standard SOP)
• 18% sulfate sulfur — immediately plant-available sulfur co-delivered with potassium
• Ion exchange production — ultra-low chloride; lowest salt index of any SOP
• Crystalline form — very low SGN for rapid, complete dissolution
• Lowest salt index — safest SOP for sensitive crops and high-EC environments
• Liquid blend compatible — dissolves cleanly with no residue

Applications

• Hydroponic and soilless nutrient programs
• Fertigation and drip irrigation systems
• High-value chloride-sensitive crop production
• Precision liquid fertilizer blend formulation
• specialty crop production — bloom and finishing stages
• Berries, potatoes, tobacco, and tree fruits

Specifications

• Analysis: 0-0-53 + 18% S
• Soluble Potash (K₂O): 53% minimum
• Sulfur (S): 18% sulfate
• Form: Crystalline (very low SGN)
• Production method: Ion exchange
• Brand: Protassium+ (Compass Minerals)
• Country of Origin: Canada