Potassium phosphate
CAS 16068-46-5
A CAS number is an identifier, not a guarantee that every registered substance has one exact molecular formula.
CAS 16068-46-5 is a useful database lesson. Regulatory sources list it broadly as “potassium phosphate” or “phosphoric acid, potassium salt,” rather than one specific KH2PO4, K2HPO4, or K3PO4 crystal. Potassium-to-phosphate ratio changes pH and charge balance. A CAS number identifies a substance record, but does not always guarantee one uniquely defined stoichiometric formula.
Published:
2026-09-10
