High purity 98% Potassium Dihydrogen Phosphate (KH2PO4) white powder for agricultural applications.

• Product: Potassium dihydrogen phosphate (MKP)
• Molecular formula: KH2PO4
• Molecular weight: 136.09
• Industrial grade: 98% purity (CAS 7778-77-0)
• Fertilizer grade: 98% purity (CAS 7778-77-0)

References: Riel Chemical Lab1&2, National public service platform for standards information.

• Molecular weight: 163.94 g/mol
• Appearance: White crystalline or powdery solid
• Odor: Odorless or slightly sulphide odor
• Density: 1.62 g/cm³ (dodecahydrate, 20°C)
• Melting point: approx. 73.4°C (dodecahydrate decomposition)
• Chemical Safety: Unrestricted goods
• Solubility: Easily soluble in water (aqueous solution is strongly alkaline, pH about 12); insoluble in ethanol and other organic solvents
• Hydrolysis reaction: Fully ionized in water to form phosphate ions and sodium ions
• Complexation: Forms insoluble precipitates with metal ions (e.g. Ca²+, Mg²+) for softening hard water
• Thermal stability: Decomposes when heated to high temperatures, forming sodium phosphate and oxygen
• Acid base: The aqueous solution is strongly basic and can react with acid to form phosphate

Potassium dihydrogen phosphate is a high-quality phosphate and potassium fertilizer that promotes nitrogen and phosphorus absorption in crops. It quickly supplements phosphorus, increasing crop yield and 1000-grain weight. Suitable for various crops including wheat, rice, cucumber, tomato, and grape, it significantly improves crop growth effectiveness.

This compound strengthens crop resistance to environmental stresses including drought, dry heat, waterlogging, freezing, and bacterial infections. These properties make it particularly valuable in harsh growing conditions where crop protection is essential.