On the extraction and separation of iodide complex of cadmium(II) in propyl-alcohol ammonium sulfate aqueous biphasic system

Xiaohai Liu; Yuntao Gao; Runsheng Tang; Wei Wang

doi:10.1016/j.seppur.2005.12.002

On the extraction and separation of iodide complex of cadmium(II) in propyl-alcohol ammonium sulfate aqueous biphasic system

Xiaohai Liu, Yuntao Gao, Runsheng Tang, Wei Wang

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

15 Scopus citations

Abstract

The distribution behavior of iodide complex of Cd(II) in the propyl-alcohol ammonium sulfate aqueous biphasic extraction systems was experimentally investigated in this study. In the presence of NH₄I and HCl medium, Cd(II) was found to be extracted into the propyl-alcohol phase as a result of the formation of ion pair [CdI₄^2-·(PrOH₂⁺)₂]. The experimental results indicated that cadmium can be quantitatively extracted by the proposed method, and an extraction percentage of 99.2% can be achieved under the suggested optimal extraction conditions. The potential applications of the proposed method to the separation of cadmium from base metals, such as Fe²⁺, Ca²⁺, Mg²⁺, Mn²⁺, Al³⁺, Pb²⁺ and Zn²⁺ in synthetic samples, and to the separation of cadmium from Cd contaminated soils were also investigated in this work.

Original language	English
Pages (from-to)	263-266
Number of pages	4
Journal	Separation and Purification Technology
Volume	50
Issue number	2
DOIs	https://doi.org/10.1016/j.seppur.2005.12.002
State	Published - 15 Jun 2006
Externally published	Yes

Keywords

Aqueous biphasic extraction system
Cadmium
Propyl-alcohol (PrOH)
Separation

ASJC Scopus subject areas

Analytical Chemistry
Filtration and Separation

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10.1016/j.seppur.2005.12.002

Cite this

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title = "On the extraction and separation of iodide complex of cadmium(II) in propyl-alcohol ammonium sulfate aqueous biphasic system",

abstract = "The distribution behavior of iodide complex of Cd(II) in the propyl-alcohol ammonium sulfate aqueous biphasic extraction systems was experimentally investigated in this study. In the presence of NH4I and HCl medium, Cd(II) was found to be extracted into the propyl-alcohol phase as a result of the formation of ion pair [CdI42-·(PrOH2+) 2]. The experimental results indicated that cadmium can be quantitatively extracted by the proposed method, and an extraction percentage of 99.2\% can be achieved under the suggested optimal extraction conditions. The potential applications of the proposed method to the separation of cadmium from base metals, such as Fe2+, Ca2+, Mg2+, Mn2+, Al3+, Pb2+ and Zn2+ in synthetic samples, and to the separation of cadmium from Cd contaminated soils were also investigated in this work.",

keywords = "Aqueous biphasic extraction system, Cadmium, Propyl-alcohol (PrOH), Separation",

author = "Xiaohai Liu and Yuntao Gao and Runsheng Tang and Wei Wang",

year = "2006",

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day = "15",

doi = "10.1016/j.seppur.2005.12.002",

language = "English",

volume = "50",

pages = "263--266",

journal = "Separation and Purification Technology",

issn = "1383-5866",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - On the extraction and separation of iodide complex of cadmium(II) in propyl-alcohol ammonium sulfate aqueous biphasic system

AU - Liu, Xiaohai

AU - Gao, Yuntao

AU - Tang, Runsheng

AU - Wang, Wei

PY - 2006/6/15

Y1 - 2006/6/15

N2 - The distribution behavior of iodide complex of Cd(II) in the propyl-alcohol ammonium sulfate aqueous biphasic extraction systems was experimentally investigated in this study. In the presence of NH4I and HCl medium, Cd(II) was found to be extracted into the propyl-alcohol phase as a result of the formation of ion pair [CdI42-·(PrOH2+) 2]. The experimental results indicated that cadmium can be quantitatively extracted by the proposed method, and an extraction percentage of 99.2% can be achieved under the suggested optimal extraction conditions. The potential applications of the proposed method to the separation of cadmium from base metals, such as Fe2+, Ca2+, Mg2+, Mn2+, Al3+, Pb2+ and Zn2+ in synthetic samples, and to the separation of cadmium from Cd contaminated soils were also investigated in this work.

AB - The distribution behavior of iodide complex of Cd(II) in the propyl-alcohol ammonium sulfate aqueous biphasic extraction systems was experimentally investigated in this study. In the presence of NH4I and HCl medium, Cd(II) was found to be extracted into the propyl-alcohol phase as a result of the formation of ion pair [CdI42-·(PrOH2+) 2]. The experimental results indicated that cadmium can be quantitatively extracted by the proposed method, and an extraction percentage of 99.2% can be achieved under the suggested optimal extraction conditions. The potential applications of the proposed method to the separation of cadmium from base metals, such as Fe2+, Ca2+, Mg2+, Mn2+, Al3+, Pb2+ and Zn2+ in synthetic samples, and to the separation of cadmium from Cd contaminated soils were also investigated in this work.

KW - Aqueous biphasic extraction system

KW - Cadmium

KW - Propyl-alcohol (PrOH)

KW - Separation

UR - https://www.scopus.com/pages/publications/33747145260

U2 - 10.1016/j.seppur.2005.12.002

DO - 10.1016/j.seppur.2005.12.002

M3 - Article

AN - SCOPUS:33747145260

SN - 1383-5866

VL - 50

SP - 263

EP - 266

JO - Separation and Purification Technology

JF - Separation and Purification Technology

IS - 2

ER -

On the extraction and separation of iodide complex of cadmium(II) in propyl-alcohol ammonium sulfate aqueous biphasic system

Abstract

Keywords

ASJC Scopus subject areas

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