| http://www.w3.org/ns/prov#value | - nary alkanolammonium ions, diquaternary ammonium ions, and mixtures thereof, ???r??? is the mole ratio of R to (Al+E) and has a value of about 0.25 to about 3.0, E is an element selected from the group consisting of Ga, Fe, In, Cr, and B, ???x??? is the mole fraction of E and varies from 0 to about 0.5, ???n??? is the weighted average valence of M and has a value of +1 to about +2, ???p??? is the
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