Sodii Pyrophosphas. Sodium Pyrophosphate. Na4P2 O7+10H20O = 445.24.

Source

From heating Sodium Phosphate. 2Na2Hpo4 + 12H2O = Na4 P2O7+13H2O.

Characters

Colorless, transparent, monoclinic prisms, or a crystalline powder, odorless, having a cooling, saline and feebly alkaline taste. Solubility. - In 12 parts of water; insoluble in Alcohol.

Sodium Pyrophosphate is used to prepare Ferri Pyrophosphas Solubilis.

Dose, 1/2 to 4 dr.; 2. to 15. gm.

Action and Therapeutics of Sodium Pyrophosphate

Sodium pyrophosphate has the same therapeutical action as sodium phosphate, but its principal use is in pharmacy.