Alternatively, {HEAD ~ the complexing agent} can be added to {TAIL ~ the zirconium metal salt} and acid solution rather than with the organic base solution 
added to
Alternatively , { HEAD ~ the complexing agent } can be added to { TAIL ~ the zirconium metal salt } and acid solution rather than with the organic base solution
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH