引用本文:
石晓波, 李春根, 汪德先. 电位滴定判断二元金属氢氧化物的复合化[J]. 应用化学,
2002, 19(4): 398-400.
Citation: SHI Xiao-Bo, LI-Chun Gen, WANG De-Xian. Potentiometrical Judgement of the Complex M(Ⅲ)-M(Ⅱ) Metal Hydroxides[J]. Chinese Journal of Applied Chemistry, 2002, 19(4): 398-400.
Citation: SHI Xiao-Bo, LI-Chun Gen, WANG De-Xian. Potentiometrical Judgement of the Complex M(Ⅲ)-M(Ⅱ) Metal Hydroxides[J]. Chinese Journal of Applied Chemistry, 2002, 19(4): 398-400.
English
Potentiometrical Judgement of the Complex M(Ⅲ)-M(Ⅱ) Metal Hydroxides
Abstract:
Potentiometric titration method was used to judge whether the precipitated hydroxide is a complex hydroxide or a mixture when alkali solution was added to an aqueous solution containing two kinds of metal salts(Al3+、Fe3+、Ni2+、Zn 2+、Cu2+). Capability of complex formation between the metal hydroxides was investigated by comparing the pH of the plateau in the titration curves with that for the solution of one metal ion. Complex hydroxide was formed for all divalent ions and trivalent ions, and the sequence of the capability was Ni2+ > Zn2+ > Cu2+.
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