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Citation: Ma Enxin, Yan Xiaomin, Wang Sanyi, Yuan Chengye. STUDY ON THE EQUILIBRIUM AND COORDINATION COMPOUND OF IRON(Ⅲ) EXTRACTION WITH N,N-DI (1-METHYLHEPTYL)ACETAMIDE IN HYDROCHLORIC ACID[J]. Chinese Journal of Applied Chemistry, ;1986, 3(6): 36-39. shu

STUDY ON THE EQUILIBRIUM AND COORDINATION COMPOUND OF IRON(Ⅲ) EXTRACTION WITH N,N-DI (1-METHYLHEPTYL)ACETAMIDE IN HYDROCHLORIC ACID

1.
Shanghai Institute of Organic Chemistry, Academia Sinica

Received Date: 16 January 1986
Available Online: 29 May 1986

The extraction behaviors of iron (Ⅲ) with N,N-di(1-methylheptyl) acetamide (N503) in hydrochlorie acid medium, including equilibrium time, the effect of additive agents and acidity, and extraction capacity have been described. The equation ofextraction reaction has been deduced through a study on the equilibrium as Fe³⁺+H⁺+4Cl^-+3S (O)???19860611???HFeCl₄·3S(O), where S refers to the extractant. The extrraction constant, Kex has been estimated as 10^(2.19±0.04) (25℃, μ=4M). By means of both elemental analyses and thermal analysis, the composition of the coordination compound of iron(Ⅲ)obtained by saturation extraction has been identified as HFeCl₄·2S. The species of coordination compound investigated by magnetic moment.UV and IR spectra measurements can be expressed as(H⁺·2S)(FeCl₄^-).
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