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Citation: Le Shaoming, Li Deqian, Ni Jiazuan. MECHANISM OF EXTRACTION OF SILVER (Ⅰ) FROM THIOSULPHATE SOLUTION BY PRIMARY AMINE NITRATE[J]. Chinese Journal of Applied Chemistry, ;1988, 5(1): 27-31. shu

MECHANISM OF EXTRACTION OF SILVER (Ⅰ) FROM THIOSULPHATE SOLUTION BY PRIMARY AMINE NITRATE

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Received Date: 2 July 1986
Available Online: 12 November 1986

The mechanism of extraction of silver(I) from thiosulphate solution by N1923 nitrate has been Studied. The effects of acidity, concentration of NO₃^- and S₂O₃^2- in aqueous phase on the diStribution ratio (D) of Ag(I) have been investigated. It is found that the D value decreases with increase of concentration of NO₃^- and S₂O₃^2-, and pH value as well. The results show that the extraction process is an anion exchange and the extracted species are a mixture of AgS₂O₃^- and Ag(S₂O₃)₂^3-. The IR spectra of the extracted complexes were measured, which support the mechanism proposed.
- Extraction,
- Silver ion,
- Primary amine N₁₉₂₃,
- Thiosulphate,
- Mechanism
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