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Fe(NO3)3.6H2O    C2H5OH
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1)  [Fe(OH2)6](NO3)3 = [Fe(OH2)6](3+) + 3NO3(-)
  2)  [Fe(OH2)6](3+)  + HOC2H5 =  [Fe(OH2)5(HOC2H5)](3+)  + H2O
  3) NO3(-) + nHOC2H5 = [NO3(HOC2H5)n](-)
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