PROCESS FOR PRODUCTION OF HEXAFLUOROPHOSPHATES

摘要

Provided are a process for production of hexafluorophosphates by which inexpensive high-quality hexafluorophosphates can be easily produced with production cost control; an electrolytic solution containing a hexafluorophosphate; and an electricity storage device equipped with the electrolytic solution.  The process for production of hexafluorophosphates is characterized by reacting at least a phosphorus compound with a fluoride represented by chemical formula: MFs·r(HF) [wherein 0=r=6; 1=s=3; and M is at least one selected from the group consisting of Li, Na, K, Rb, Cs, NH4, Ag, Mg, Ca, Ba, Zn, Cu, Pb, Al and Fe] to form a hexafluorophosphate represented by chemical formula: M(PF6)s.