| Chemistry name: | TKPP; tetrapotassium pyrophosphate; potassium pyrophosphate, normal
|
| M Formula: | K4P2O7•3H2O
|
| |
| Properties: |
| Colorless crystals or white powder. Somewhat hygroscopic in air (deliquescent at a relative humidity of above 40–45%). Similar to tetrasodium pyrophosphate except for greater solubility. D 2.33, dehydrates at about 300C, mp 1,090C. Soluble in water; insoluble in alcohol. |
| |
| Grade: |
| Technical, 99.4%, 60% solution, FCC. |
| |
| Use: |
| Soap and detergent builder, sequestering agent, peptizing and dispersing agent. |
| |