Tetrasodium pyrophosphate, aswell alleged sodium pyrophosphate, tetrasodium phosphate or TSPP, is a achromatic cellophane apparent actinic admixture with the blueprint Na4P2O7. It is a alkali composed of pyrophosphate and sodium ions. Toxicity is about alert that of table alkali if ingested orally. There is aswell a hydrated form, Na4P2O7 • 10(H2O).
Tetrasodium pyrophosphate is acclimated as a buffering agent, an emulsifier, a dispersing agent, and a agglomeration agent, and is generally acclimated as a aliment additive. Common foods absolute tetrasodium pyrophosphate cover craven nuggets, marshmallows, pudding, backtalk meat, apery crab, canned tuna, and soy-based meat alternatives and cat foods and cat treats area it is acclimated as a palatability enhancer.
In toothpaste and dental floss, tetrasodium pyrophosphate acts as a tartar ascendancy agent, confined to abolish calcium and magnesium from saliva and appropriately preventing them from getting deposited on teeth. Tetrasodium pyrophosphate is acclimated in bartering dental rinses afore abrasion to aid in applique reduction.
Tetrasodium pyrophosphate is sometimes acclimated in domiciliary detergents to anticipate agnate degradation on clothing, but due to its phosphate agreeable it causes eutrophication of water, announcement algae growth.