... No.: 7778-53-2 3. Potassium phosphate 4. Water softener, fertilizer, food grade 1. Specification:Tripotassium phosphate / TKP 97% / CAS No ... 0003% maxFluoride0.001% maxWater-insoluble substances0.2% max2. Properties:Anhydrous or Monohydrate. White crystal or granular, odourless, absorbtion of ... pharmaceutic aid, Food additive, emulsifier, flavoring agent; In meat Tripotassium Phosphate Anhydrous (ATKP)