All of Ce(IV)-pIO compounds can be used as ion
exchangc. The solubility of these compounds in inorga nic acids
arc vcry low and they can not be formed anionic complexes and
can give amorph and crystalize phases under different conditions
in which the phosphate gro ups WdS substituted with sulphate
groups. The crystal and amorph form of inorga nic polymers of
Ce(IV)-P can be prepare from the react ion of orttophos phoric
add in the prescnc of Ce(IV)-SYO in H2S04 at 8O-100°C with
stirring about 4h. The crystal form of Cc(IY) - P have fibrious
strm:turc and ycry simi lar with ceieiuse paper. The X,RD
elemental analysis, lR and FTIR and microscopic pictures of
polymer under diffrent condition of preparations. and onc of its
use as chromatographic separation of inorganic cations was also
studied.