Diammonium Phosphate (DAP, 18-46-0)

Description

Product Overview
Diammonium Phosphate (18-46-0) is a highly concentrated, water-soluble phosphorus-nitrogen fertilizer. It is primarily used in large-scale row-crop farming and controlled-release blending to correct soil phosphorus deficiency pre- or post-planting. The key value proposition is its superior nutrient density (46% P₂O₅) combined with ammoniacal nitrogen, which enhances phosphorus availability in calcareous and alkaline soils. Strategically, DAP remains indispensable for global food security, offering the lowest cost-per-unit of P₂O₅ among dry granular fertilizers.

Key Specifications & Technical Characteristics

• Chemical composition: Diammonium phosphate ((NH₄)₂HPO₄) – 18% N, 46% P₂O₅

• Purity grade: Minimum 98% water solubility; free of heavy metals (ASTM/ISO compliant)

• Physical form: Uniform gray to brown granular, 2–4 mm granule size (90% within range)

• Bulk density: 0.95–1.05 g/cm³; minimal dust and caking

• Packaging options: 50 kg multi-walled paper/PP bags, 1 MT poly-lined big bags, or bulk vessel loading

• Shelf life: 24 months in dry, ventilated conditions below 35°C

Core Industrial Applications

• Primary industries: Large-scale grain & oilseed farming, fertilizer blending plants, contract agronomy services

• Operational use cases: Direct soil application for wheat, maize, rice, and canola; base blending with MOP (muriate of potash) and urea; starter fertilizer for high-phosphorus-requiring crops

• Performance advantage: Higher P₂O₅ concentration reduces freight and handling cost per hectare by 15–20% versus single superphosphate (SSP)

• Cost/efficiency benefit: Ammoniacal nitrogen promotes rhizosphere acidification, improving P uptake efficiency by up to 30% in high-pH soils compared to non-ammonium phosphates

Competitive Advantages

• Quality consistency: SGS/Intertek-certified lot analysis with guaranteed 46% P₂O₵ min and <2% moisture

• Supply reliability: Multi-plant sourcing (Middle East, Russia, China) with 50,000+ MT monthly export capacity

• Logistics capability: In-house vessel chartering and rail-to-barge transloading to landlocked industrial zones

• Price competitiveness: Quarterly fixed-price contracts with formula-based hedging for volume buyers (>20,000 MT/year)

• Sustainability: Low-cadmium product (<5 ppm) compliant with EU 2019/1009; zero wastewater during granulation

• Technical support: Custom blending recipes and soil test interpretation provided by agronomists on retainer

Commercial & Supply Information

• Minimum order quantity (MOQ): 20 metric tons (bulk or bagged)

• Loading capacity: 25 MT per standard 20-ft container (bagged); 28 MT per 20-ft bulk liner container; vessel break-bulk up to 25,000 MT per hold