The hydroxide phase is preferably of the hydrotalcite type with {HEAD ~ indexed lattice parameters} in the hexagonal system a=3.122 Å±0.01 Å and {TAIL ~ c=7.567} Å±0.01 Å 
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The hydroxide phase is preferably of the hydrotalcite type with { HEAD ~ indexed lattice parameters } in the hexagonal system a=3.122 Å±0.01 Å and { TAIL ~ c=7.567 } Å±0.01 Å
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH