CAS Registry Number

CAS 21324-39-0 — Sodium hexafluorophosphate

Sodium hexafluorophosphate is a fluorinated inorganic salt used primarily as an electrolyte additive in lithium-ion batteries. It functions as a source of PF6⁻ anions, enhancing ionic conductivity and electrochemical stability. Available in powder form, it has a molecular weight of 167.95 g/mol, a CAS number of 21324-39-0, and should be stored at ambient temperatures. It is classified as a hazardous substance with a signal word of Danger. Molekula supplies Sodium hexafluorophosphate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.