Potassium Dihydrogen Phosphate is a high-efficiency phosphorus-potassium compound fertilizer and a versatile functional additive, known for its high nutrient content, excellent water solubility, and superior buffering capacity. It serves as a crucial input in precision agriculture, the food industry, and various industrial processes. The product is typically manufactured through the neutralization of food-grade or technical-grade phosphoric acid with potassium hydroxide, followed by crystallization, purification, and drying.

❋ Aliases: Monopotassium Phosphate, MKP
❋ English Name: Potassium Dihydrogen Phosphate
❋ Chemical Formula: KH₂PO₄
❋ Molecular Weight: 136.09
❋ CAS Number: 7778-77-0

Key Properties: High water solubility, acidic solution, strong buffering capacity, high nutrient content (P₂O₅ & K₂O)

Advanced Application Scenarios

1. "High-Efficiency Nutrient Source" in Precision Agriculture

• Used in fertigation and foliar feeding systems, providing readily available phosphorus and potassium, with nutrient utilization efficiency exceeding 80%.

• Serves as a key component in high-quality water-soluble fertilizers, often blended with nitrogen and micronutrients to create balanced formulations for specific crop needs.

2. "Food Quality Improver" in Food Industry

• Acts as an emulsifier, stabilizer, and pH regulator in processed cheese, preventing oil separation and improving texture.

• Used in meat products as a water-binding agent, enhancing juiciness and yield.

3. "Buffer and Nutrient" in Biotechnology

• Serves as a crucial component in cell culture media and fermentation broths, providing essential phosphorus and potassium while maintaining stable pH.

• Used in the preparation of buffer solutions in molecular biology and diagnostic kits.

4. "Flame Retardant and Additive" in Industrial Chemistry

• Acts as an effective flame retardant in textiles and polymers, promoting char formation.

• Used as a precursor for the production of other potassium phosphates and specialty chemicals.

Technological Breakthroughs and Sustainable Development

Purification Technology

• Implementation of multi-stage purification and crystallization control technologies results in products with low heavy metal content (e.g., Pb ≤ 2 ppm, As ≤ 1 ppm), suitable for food and pharmaceutical grades.

• Advanced filtration techniques ensure low insoluble matter content.

Process Efficiency

• Development of continuous neutralization processes improves production efficiency and product consistency.

• Heat recovery systems in crystallization and drying units reduce energy consumption per ton of product.

Sustainable Practices

• Sourcing of phosphoric acid and potassium hydroxide from suppliers adhering to responsible environmental practices.

• Optimization of process water usage and implementation of recycling loops minimize wastewater generation.

Quality & Compliance

• Rigorous quality control ensures compliance with various international standards such as FAO, FCC, and USP.

• Certifications like ISO 9001 and FSSC 22000 guarantee consistent quality for different application markets.

Technical Advantages

Quality Advantages

• Assay (KH₂PO₄): ≥ 99.0%

• P₂O₅ content: ≥ 52%, K₂O content: ≥ 34%

• Heavy metals (as Pb): ≤ 10 ppm (Industrial Grade), ≤ 2 ppm (Food Grade)

Physical Characteristics

• Appearance: White crystalline powder or granules

• Solubility: Highly soluble in water (approx. 25 g/100 mL at 25°C), insoluble in ethanol.

• pH of 1% solution: ~4.5

Application Support

• Provides agronomic recommendations for different crops and growth stages.

• Offers technical support for industrial applications, including formulation advice and compatibility information.