Potassium Polyborate in Crystalline Powder/ Granular Form is mainly used as micronutrient fertilizer. Potassium Polyborate contains minimum 18% boron and 16% potassium oxide. Potassium Polyborate maintains a pH level ranging from 7-8.5. Potassium Polyborate in Crystalline Powder/ Granular Form is non flammable and is soluble in water.