Purification of cadmium by vacuum distillation and its analysis

Ali, Shahid; Munirathnam, N. R.; Sudheer, Ch.; Reddy, Raghu C.; Prakash, T. L.

doi:10.1016/j.matlet.2003.11.001

Cited by 28 publications

(6 citation statements)

References 3 publications

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“…Cadmium purification results with and without oxide layer showed substantial reduction of zinc impurity in cadmium distilled with oxide layer. On the other hand, without the oxide layer, the Zn in Cd was reduced from 2 ppm to 0•6 ppm after first distillation and then to 0•4 ppm after subsequent second distillation (Ali et al 2004). In the present work, Zn in Cd was reduced from 78 to 57 ppb after first distillation in the process where there is no oxide layer and to <4 ppb after first distillation through oxide phase.…”

Section: Separation Of Metallic Impuritiescontrasting

confidence: 42%

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Purification of cadmium by selective volatilization in vacuum in presence of oxide phase on its melt

2012

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Purification of cadmium in the presence of a thin (∼0•001 mm) oxide layer on the surface of the molten metal was carried out using a simple system designed and fabricated locally. The analytical results revealed that the distillation through oxide layer gave better separation for Co, Ni, Cu, Zn, Ag, Sn, Hg and Tl, when compared to the distillation without oxide layer. This was attributed due to the impurity metal oxide phases formation on the surface of the molten metal. The influence of oxygen flow time on the distillation rate of cadmium was established. There was no excess oxygen (O) retained in the distillate after two consecutive vacuum distillations through oxide route. The experiments were conducted at the level of nearly 1•5 kg a batch to study the impurities behaviour due to upscaling. The detailed chemical analysis of 58 impurity elements in Cd in presence and absence of oxide layer was carried out by glow discharge mass spectrometry (GDMS).

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Section: Separation Of Metallic Impuritiescontrasting

confidence: 42%

“…The impurity distribution between the phases is assumed to be homogeneous in composition and determined by thermodynamic equilibrium. At equilibrium the reaction looks like r A + sCdO ↔ A r O s + sCd, at a partial pressure P 0 i and temperature of evaporation, T (K) (Ali et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Purification of cadmium by selective volatilization in vacuum in presence of oxide phase on its melt

2012

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“…It has been proven that the content of amino acid and cand fatty acids could influence the nutritive values and flavour in the muscle of fish (Akitomi etal., 2013;Ali et al, 2004;Bermúdez et al, 2014;Bureau et al, 2000;Cheng, 2014). The steady concentration of amino acids indicated that S. barcoo could regulate the balance between protein metabolism and amino acid degradation during 20 d of starvation.…”

Section: Discussionmentioning

confidence: 99%

Effects of starvation stress on jade perch scortum barcoo based on proteomics analysis

Xie

BAO

et al. 2021

Aquaculture Research

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Proteins related to antioxidant defence systems and energy maintenance play a vital role in resisting starvation in fish. However, studies on the underlying molecular mechanism of starvation stress in the jade perch Scortum barcoo are very limited. Thus, the proteomic changes in S. barcoo during fasting were investigated by stable isotope labelling and high‐performance liquid chromatography‐tandem mass spectrometry (iTRAQ‐LC‐ MS/MS) in the present study. Therefore, a total of 3324 proteins were identified, including 134 that were significantly altered (p < 0.05, fold change >1.20 or <0.83) in the experimental groups compared with the control group. Among all the differentially expressed proteins, only protein‐disulphide reductase (TXNDC12) was upregulated. One‐third of the differentially expressed proteins were enriched in the amino acid metabolism pathway, tricarboxylic acid (TCA) cycle pathway, fatty acid metabolism pathway and oxidative phosphorylation pathway. Proteins differentially expressed in the experimental group, including AASS, OGDH, ACAD8, FAH, BHMT, AOC3, AOC2 and HIBADH, are components of pathways that control the metabolism of amino acids. The results suggested the involvement of antioxidant defence in the response to an oxidative imbalance, and GSH, SOD and AKP were regulated under conditions of starvation stress. In conclusion, the data indicated that starvation‐induced changes in protein levels that might affect metabolism and the antioxidant system.

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“…CdSe, CdTe, CdS, etc). [11] Cu 2 + is also important for human body since it plays crucial roles in oxygen transport and signal transduction, whereas its high intake causes several neurodegenerative diseases. [8c,12] Copper naturally present as an impurity in Li-ion batteries and affects the recycling value chain of the waste battery materials.…”

Section: Introductionmentioning

confidence: 99%

“…Detection of minute impurity of Zn 2+ is also necessary in obtaining high purity cadmium metal, an extensively used electronic material for the preparation of semiconductors (eg. CdSe, CdTe, CdS, etc) [11] . Cu 2+ is also important for human body since it plays crucial roles in oxygen transport and signal transduction, whereas its high intake causes several neurodegenerative diseases [8c,12] .…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Logic Operations Based Upon Congruent Ion Sensing Appended with a Strategic Molecular Device: Spectroscopic Approach

Samanta,

Paul,

Mahapatra

et al. 2024

ChemNanoMat

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A multi‐responsive smart molecular system was constructed on a newly synthesized Salen molecule, 1,3‐bis((E)‐2,3,4‐trimethoxy benzylideneamino) propan‐2‐ol (TMBP) to selectively validate the presence as well as the absence of Cu2+ dictated by another selective metal ion, Zn2+. The emission efficiency of the non‐emissive probe was significantly enhanced by Zn2+ selectively, while specific binding of the probe‐Zn2+ complex with Cu2+ completely quenched the enhanced emission. Thus, the probe acted as a reporter molecule for the selective detection of Cu2+ in the co‐presence of Zn2+. Comprehensive spectroscopic studies indicated that Zn2+ ion‐coordination significantly reduced the flexibility of the Schiff base unit and decreased the extent of photoinduced electron transfer (PET) enabling an enhancement of fluorescence intensity. While, Cu2+, a d9 system, induced paramagnetic quenching through formation of a stable ground‐state complex as established from the UV‐Vis analysis and time resolved fluorescence measurements. The spectroscopic results were implemented into the designing of a multifunctional molecular logic system that could function as YES, NOT, INHIBIT, PASS 0, TRANSFER and NOT TRANSFER logic gates. Finally, a blueprint of a smart molecular device was proposed to present the relay sensing of Zn2+ and Cu2+ through logical outputs that would work in‐sync with the spectroscopic results.

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Purification of cadmium by vacuum distillation and its analysis

Cited by 28 publications

References 3 publications

Purification of cadmium by selective volatilization in vacuum in presence of oxide phase on its melt

Purification of cadmium by selective volatilization in vacuum in presence of oxide phase on its melt

Effects of starvation stress on jade perch scortum barcoo based on proteomics analysis

Multifunctional Logic Operations Based Upon Congruent Ion Sensing Appended with a Strategic Molecular Device: Spectroscopic Approach

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