In Collins method, a broth for making hydrous zirconium oxide for {HEAD ~ instance}, contains four chemical constituents: an organic base, a complexing agent, a zirconium metal salt, and {TAIL ~ an acid} 
In Collins method , a broth for making hydrous zirconium oxide for { HEAD ~ instance } , contains four chemical constituents : an organic base , a complexing agent , a zirconium metal salt , and { TAIL ~ an acid }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL