Potassium Metaphosphate

(USAN)
Potassium Metaphosphate Chemical formula

Chemical information

E452 (potassium polyphosphates); Polifosfato potásico; Potassium Kurrol’s Salt; Potassium Polymetaphosphate.
Chemical formula: (KPO3) x .
CAS — 7790-53-6.

Pharmacopoeias.

In USNF.

USNF 26

(Potassium Metaphosphate). A straight-chain polyphosphate, having a high degree of polymerisation. It contains the equivalent of 59 to 61% of P 2 O 5 . A white, odourless powder. Insoluble in water; soluble in dilute solutions of sodium salts.

Profile

Potassium metaphosphate is used as a buffer.
Published May 08, 2019.