Potassium Sulfate Fertilizer

Specification: Appearance: White or light yellow crystal Purity: 98% min Potassium (K2O): 50% min Free acid: 0.03% max Calcium: 0.01% max Chloride and chlorate (Cl): 5ppm max Iron (Fe): 2 ppm max Arsenic (As): 1ppm max Heavy metals (Pb): 5 ppm max Water insoluble: 0.005% max pH value (5% water solution): 5.0-8.0 Application It can be used as basic fertilizer, additional fertilizer and seed manure. It is suitable especially for onions, garlic, hemp, potatoes and other crops which need high sulfur but avoid chlorine. For soil lack of sulfur, ammonium sulphate is favorite fertilizer. For specific application rates follow the recommendation of a qualified individual or institution.