... -functional; 4. used at seeding stage; 5. as raw material Monopotassium phosphate is a white or colorless crystal. Its molecular weight is ... pH value of 1% water solution is 4.5.Our monopotassium phosphate is a kind of high efficient, quick, multi-functional fertilizer ... -4.8 Density 2.3g/cm3 HS CODE 28352400 fertilizer monopotassium phosphate