层状双氢氧化物
氢氧化物
水滑石
化学
滴定法
无机化学
金属氢氧化物
氧化物
溶解度
金属
产量(工程)
滴定曲线
核化学
材料科学
物理化学
催化作用
有机化学
冶金
作者
Joseph W. Boclair,Paul S. Braterman
摘要
Solutions containing di- and trivalent metal chlorides [M(II) = Mg2+, Zn2+, Co2+, Ni2+, Mn2+; M(III) = Al3+, Fe3+] were titrated with NaOH to yield hydrotalcite-like layered double hydroxides (LDH), [[M(II)]1-x[M(III)]x(OH)2][Cl]x yH2O, by way of M(III) hydroxide/hydrous oxide intermediates. Analysis of the resultant titration curves yields nominal solubility constants for the LDH. The corresponding LDH stabilities are in the order Mg < Mn < Co approximately Ni < Zn for M(II) and Al < Fe for M(III). The stability of LDH relative to the separate metal hydroxides/hydrous oxides is discussed.
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