| http://www.w3.org/ns/prov#value | - Examples of such compounds are neutral salts such as NaCl, KCl and KBr as disclosed in JN-A- 58- 75 152; chelating agents such as EDTA and NTA as disclosed in JN-A- 58- 190 952 (U.S. Pat. No. 4,469,776), complexes such as [Co(NH3)6]Cl3 as disclosed in JN-A- 59- 121 336 (U.S. Pat. No. 4,606,995); ionizable compounds of elements of the group IIa, IIIa or IIIb of the Periodic Table such as those disc
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