P+3Li=PLi3
PLi3+3HCl=PH3+3LiCL
PH3+HI=PH4I
PH4I+NaOH=NaI+H2O+PH3
2PH3+8O2=P2O5+3H2O
HCOOH+CH3OH=HCOOCH3 + H2O