Mono Potassium Phosphate(MKP) Molecular formula: KH2PO4 Molecular weight: 136.09 Standard executed: HG2321-1992(technical grade) Q74465717-12(food grade) CAS Number: 7778-77-0 Properties: White or colorless crystal, easily soluble in water, relative density at 2.338 g/cm3, melting point at 252.6 , and PH value of 1% solution is 4.5. Uses: Used to manufacture metaphosphate in medical or food industry. Used as a high effective K and P compound fertilizer. It contains totally 86% fertilizer elements, used as a basic raw material for N, P and K compound fertilizer. Packing and storage: In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place. Guaranteed Technical Specifications : No Specifications Industrial Grade Food Grade 1 Main contents % min 99.0 99.0 2 Phosphorus pentoxide % min 51.50 51.50 3 Potassium oxide (K2O) % min 34.0 34.0 4 PH value of 1% solution 4.3-4.7 4.3-4.7 5 Moisture % max 0.20 0.20 6 Heavy metal, as Pb % max 0.001 7 Arsenic, as As % max 0.0003 8 Fluoride as F % max 0.005 9 Water insoluble % max 0.20 0.10