化肥NPK0-52-34Monopotassium磷酸盐

Monopotassium phosphate(MKP) Alias: Potassium dihydrogen phosphateCAS No. :7778-77-0Molecular formula: KH2PO4MW: 136.08Character: colorless cubic crystallization or white crystal powder,Melting point is 252.6 ℃. The relative density is 2.338,and it dissolves in water. Its aqueous solution is acidity. But doesn’t dissolves in ethanol.Heat it up to 400 centirade, melts and becomes transparent liquid. After efrigerating, it become opaque potassium metaphosphate. And it is easy to deliquesce.Uses: used as a fertilizer, flavoring agent, brewing yeast culture agent,and used in medicine and manufacturing of potassium meta-phosphate.Quality standard(reference standard)SpecificationIndexAgriculture gradeTechnical gradeFood gradeMain Content (KH2PO4) %≥96.0099.0099.00P2O5 %≥50.1051.2052.00K2O %≥31.8033.5034.00PH value4.4-4.64.4-4.64.4-4.6Chloride (Cl-) % ≤-----0.200.10Fe % ≤-----0.0030.003F % ≤----------0.001As % ≤-----0.0050.0003Heavy metal（Pb） % ≤-----0.0050.001Water Insoluble % ≤-----0.300.20Moisture % ≤10.500.20