PROCESS FOR PREPARATION OF DOUBLE POTASSIUM-IRON (III) DIPHOSPHATE

摘要

A process for preparation of double potassium-iron (III) diphosphate comprises the use of a melt of mechanical mixture of polycrystalline substances. The mechanical mixture of KPOis saturated at first with potassium fluoride KF, and then with iron oxide (III), the melt is mixed and crystallized by temperature decreasing. The produced single crystals of double diphosphate KFePOare washed off and dried.