Fericyanic or Ferricyanic: How To spell?
The word Fericyanic is misspelled against Ferricyanic, an adjective meaning "Pertaining to, or derived from, a ferricyanide."
Ferricyanic has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings fe & icyanic which should not be misspelled with single 'R'
Wrong Spelling:  fe-r-icyanic  Correct Spelling:  fe-rr-icyanic 
Find more wrongly spelled words of Ferricyanic to spell it well.