Potassium Pyrophosphate
Title: Potassium Pyrophosphate
CAS Registry Number: 7320-34-5
CAS Name: Diphosphoric acid tetrapotassium salt
Molecular Formula: K4O7P2
Molecular Weight: 330.34
Percent Composition: K 47.34%, O 33.90%, P 18.75%
Line Formula: K4P2O7
Literature References: Manuf: Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 684-687.
Derivative Type: Trihydrate
Properties: Colorless, deliquesc granules or cryst mass; freely sol in water; insol in alcohol. The aq soln is alkaline.
Use: In detergents and surfactants; in water treatment; in drilling muds as a clay thinner.

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