... . Water softener, fertilizer, food grade 1. Specification:Tripotassium phosphate / TKP 97% / CAS No.:7778-53-2TKP Tech. gradeAssay97 ... maxFluoride0.001% maxWater-insoluble substances0.2% max2. Properties:Anhydrous or Monohydrate. White crystal or granular, odourless, absorbtion of moisture. Relative ... aid, Food additive, emulsifier, flavoring agent; In meat Tripotassium Phosphate Anhydrous (ATKP)