Paraformaldehyde can also be used if {HEAD ~ sufficient water} is added to {TAIL ~ the reaction} to maintain all or a substantial portion of the curative in solution 
is added to
Paraformaldehyde can also be used if { HEAD ~ sufficient water } is added to { TAIL ~ the reaction } to maintain all or a substantial portion of the curative in solution
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH