Tetrapotassium Pyrophosphate (TKPP) E450, CAS no.7320-34-5, white powder, a potassium salt of phosphoric acid manufactured from Dipotassium Phosphate. Tetrapotassium Pyrophosphate is used as buffering agent, emulsifier, dispersing agent and thickening agent in food production. As an experienced Tetrapotassium Pyrophosphate manufacturer and supplier, we has been supplying and exporting Tetrapotassium Pyrophosphate for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Tetrapotassium Pyrophosphate Specification ITEM STANDARD ASSAY K4P2O7) 98.0% MIN APPEARANCE WHITE POWDER WATER SOLUBLE 0.2% MAX PH 9.9-10.7 ARSENIC( AS) 3PPM MAX LOSS ON IGNITION 2.0% MAX Pb (PPM) 5 MAX HEAVY METAL( PB) 15 PPM MAX ASRENIC(AS) 3 PPM MAX FLUORID( PPM) 10 MAX