Potassium sulfate fertilizer (SOP)

Description

1. Product Overview

Potassium sulfate (SOP) is a chloride-free, dual-nutrient fertilizer supplying 50% K₂O and 18% sulfur essential for premium crop production and industrial formulations. Its primary industrial use is in fertigation, foliar sprays, and blending for high-value fruits, vegetables, and tobacco, as well as in specialty chemical manufacturing. The key value proposition is zero chloride, preventing crop toxicity while enhancing oil, sugar, and protein content. Strategically, SOP is irreplaceable in regions with saline soils or strict chloride restrictions, making it a critical component for sustainable, high-margin agriculture.

2. Key Specifications & Technical Characteristics

• Chemical composition: K₂SO₄ (minimum 50% K₂O, 18% Sulfur)

• Purity level: 99.5% minimum (water-soluble grade)

• Physical characteristics: White crystalline powder; particle size 0.1–1.5 mm; bulk density 1.1–1.3 g/cm³; free-flowing, anti-caking treated

• Packaging options: 25 kg PP/PE bags, 1 MT jumbo bags, bulk in liner containers

• Shelf life: 36 months in dry, ventilated conditions (no degradation under standard storage)

3. Core Industrial Applications

• Primary industries: Premium agriculture (fruits, vegetables, nuts, tea, coffee), specialty fertilizer blending, and industrial chemical production.

• Operational use cases: Fertigation in greenhouse tomatoes and peppers; foliar sprays for apples and grapes; base blending for NPK formulations where chloride is prohibited.

• Performance advantage: Zero chloride eliminates root burn and leaf necrosis, unlike MOP. Higher sulfur content improves protein synthesis and crop shelf life. Cost advantage: reduced crop loss and lower remediation costs compared to chloride-induced salinity damage.

4. Competitive Advantages

• Quality consistency: ISO 9709 and 99.5% purity guaranteed batch-to-batch; heavy metals within EU/EPA limits.

• Supply reliability: Dual-source production (Mannheim and natural salt-based) with 50,000 MT monthly capacity.

• Logistics capability: Dedicated 20’ and 40’ container loading with pre-shipment third-party inspection.

• Sustainability benefit: Low-carbon manufacturing (30% less CO₂ vs. conventional methods) and zero effluent discharge.

• Technical support: Full certificate of analysis (CoA), SDS, and agronomic application guides provided.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): BULK 20 MT

• Loading capacity: 25 MT per 20’ container (bulk bags or palletized) | 27 MT per 40’ container (jumbo bags)