Parameters Specification Appearance White powder Main content as k4p2o7 %98.0 min Orthophosphate Qualified Water insoluble % 0.1 max Iron as fe % 0.03 max Ph value(1% solution) 10.5 ±0.5 Lead as pb % 0.003 max Potassium oxide as k2o %56 min P2o5% 42min Hull cell test Qualified Package25kg plastic or craft paper bags with inner liners. RemarkProducts should be stored in dry and ventilated place.
