Tetrapotassium pyrophosphateis in the form of colorless or white crystals, or a white crystalline or granular powder. It is a hydroscopic solid, soluble in water, insoluble in ethanol. TKPP has a higher solubility in water treatment formulations than sodium derivatives.
Tetrapotassium pyrophosphate is used in many industrial applications such as surface treatment, boiler descaling, detergent manufacturing, paint and coatings, mining of ore and clay, oil drilling, and synthetic rubber productions. It is applied as a food additive, detergent builder, and oral care agent.