Ferocyanide or Ferrocyanide: How To spell?
The word Ferocyanide is misspelled against Ferrocyanide, a noun meaning "One of a series of complex double cyanides of ferrous iron and some other base."
Ferrocyanide has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings fe & ocyanide which should not be misspelled with single 'R'
Wrong Spelling:  fe-r-ocyanide  Correct Spelling:  fe-rr-ocyanide 
Find more incorrect spellings of Ferrocyanide to spell right way.