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