Selective separation of silver from waste solutions on chromium(III) hexacyanoferrate(III) ion exchanger

Raj P. Singh; Ernesto R. Pambid

doi:10.1039/an9901500301

Selective separation of silver from waste solutions on chromium(III) hexacyanoferrate(III) ion exchanger

Raj P. Singh^*, Ernesto R. Pambid

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

The inorganic ion exchanger chromium(III) hexacyanoferrate(III) has been found to be specifically selective for silver ions, with a sorption capacity of ca. 10 mequiv. g^-1 of the exchanger. Sorption of the silver ions from acidic (10 mol dm^-3 HNO₃) and salt solutions (8 mol dm^-3 NH₄NO₃), containing different levels of silver nitrate, has been studied. The studies, which were aimed at using the exchanger for the recovery of silver ions from the waste, generated from chemical oxygen demand determinations, showed ca. 80-95% recovery of silver ions from concentrated waste. The exchanger also selectively removed silver ions from simulated waste containing Bi, Ca, Cd, Co, Cu^II, Mg, Mn, Ni, Pb and Zn ions.

Original language	English
Pages (from-to)	301-304
Number of pages	4
Journal	The Analyst
Volume	115
Issue number	3
DOIs	https://doi.org/10.1039/an9901500301
State	Published - 1990

Keywords

Chromium(iii) hexacyanoferrate(iii)
Ion exchange
Separation of silver
Waste solution

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Environmental Chemistry
Spectroscopy
Electrochemistry

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title = "Selective separation of silver from waste solutions on chromium(III) hexacyanoferrate(III) ion exchanger",

abstract = "The inorganic ion exchanger chromium(III) hexacyanoferrate(III) has been found to be specifically selective for silver ions, with a sorption capacity of ca. 10 mequiv. g-1 of the exchanger. Sorption of the silver ions from acidic (10 mol dm-3 HNO3) and salt solutions (8 mol dm-3 NH4NO3), containing different levels of silver nitrate, has been studied. The studies, which were aimed at using the exchanger for the recovery of silver ions from the waste, generated from chemical oxygen demand determinations, showed ca. 80-95\% recovery of silver ions from concentrated waste. The exchanger also selectively removed silver ions from simulated waste containing Bi, Ca, Cd, Co, CuII, Mg, Mn, Ni, Pb and Zn ions.",

keywords = "Chromium(iii) hexacyanoferrate(iii), Ion exchange, Separation of silver, Waste solution",

author = "Singh, \{Raj P.\} and Pambid, \{Ernesto R.\}",

year = "1990",

doi = "10.1039/an9901500301",

language = "English",

volume = "115",

pages = "301--304",

journal = "The Analyst",

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TY - JOUR

T1 - Selective separation of silver from waste solutions on chromium(III) hexacyanoferrate(III) ion exchanger

AU - Singh, Raj P.

AU - Pambid, Ernesto R.

PY - 1990

Y1 - 1990

N2 - The inorganic ion exchanger chromium(III) hexacyanoferrate(III) has been found to be specifically selective for silver ions, with a sorption capacity of ca. 10 mequiv. g-1 of the exchanger. Sorption of the silver ions from acidic (10 mol dm-3 HNO3) and salt solutions (8 mol dm-3 NH4NO3), containing different levels of silver nitrate, has been studied. The studies, which were aimed at using the exchanger for the recovery of silver ions from the waste, generated from chemical oxygen demand determinations, showed ca. 80-95% recovery of silver ions from concentrated waste. The exchanger also selectively removed silver ions from simulated waste containing Bi, Ca, Cd, Co, CuII, Mg, Mn, Ni, Pb and Zn ions.

AB - The inorganic ion exchanger chromium(III) hexacyanoferrate(III) has been found to be specifically selective for silver ions, with a sorption capacity of ca. 10 mequiv. g-1 of the exchanger. Sorption of the silver ions from acidic (10 mol dm-3 HNO3) and salt solutions (8 mol dm-3 NH4NO3), containing different levels of silver nitrate, has been studied. The studies, which were aimed at using the exchanger for the recovery of silver ions from the waste, generated from chemical oxygen demand determinations, showed ca. 80-95% recovery of silver ions from concentrated waste. The exchanger also selectively removed silver ions from simulated waste containing Bi, Ca, Cd, Co, CuII, Mg, Mn, Ni, Pb and Zn ions.

KW - Chromium(iii) hexacyanoferrate(iii)

KW - Ion exchange

KW - Separation of silver

KW - Waste solution

UR - https://www.scopus.com/pages/publications/0025239810

U2 - 10.1039/an9901500301

DO - 10.1039/an9901500301

M3 - Article

AN - SCOPUS:0025239810

SN - 0003-2654

VL - 115

SP - 301

EP - 304

JO - The Analyst

JF - The Analyst

IS - 3

ER -

Selective separation of silver from waste solutions on chromium(III) hexacyanoferrate(III) ion exchanger

Abstract

Keywords

ASJC Scopus subject areas

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