The 4 stage reduction process first of all involves a heating and cooling stage in {HEAD ~ an atmosphere} such as {TAIL ~ an inert atmosphere} which dries the organometallic compound 
such as
The 4 stage reduction process first of all involves a heating and cooling stage in { HEAD ~ an atmosphere } such as { TAIL ~ an inert atmosphere } which dries the organometallic compound
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH