Topic
Antimony
About: Antimony is a research topic. Over the lifetime, 11450 publications have been published within this topic receiving 155660 citations. The topic is also known as: Sb & element 51.
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TL;DR: An investigation of the distribution, fractionation and phytoavailability of antimony (Sb) and other heavy metals in soil sampled at various locations in the vicinity of a Sb mine revealed elevated levels of Sb, most certainly due to the mining activities.
Abstract: An investigation of the distribution, fractionation and phytoavailability of antimony (Sb) and other heavy metals in soil sampled at various locations in the vicinity of a Sb mine revealed elevated levels of Sb, most certainly due to the mining activities. The concentration of Sb in the soil samples was 100.6-5045 mg kg(-1); in comparison, the maximum permissible concentration for Sb in soil in The Netherlands is 3.5 mg kg(-1), and the maximum permissible concentration of pollutant Sb in receiving soils recommended by the World Health Organization is 36 mg kg(-1). The soil sampled near the Sb mine areas had also contained high concentrations of As and Hg. Root and leaf samples from plants growing in the Sb mine area contained high concentrations of Sb, with the concentration of Sb in the leaves of radish positively correlating with Sb concentrations in soil. The distribution of Sb in the soil showed the following order: strongly bound to the crystalline matrix > adsorbed on Fe/Mn hydrous oxides, complexed to organic/sulfides, bound to carbonates > weakly bound and soluble. Solvents showed varying levels of effectiveness in extracting Sb (based on concentration) from the soil, with SbNH4NO3 > SbEDTA > SbHAc, SbH2O > SbNH4OAc, in decreasing order. The concentration of easily phytoavailable Sb was high and varied from 2.5 to 13.2 mg kg(-1), the percentage of moderately phytoavailable Sb ranged from 1.62 to 8.26%, and the not phytoavailable fraction represented 88.2-97.9% of total Sb in soils.
244 citations
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TL;DR: The adsorption mechanism is used to rationalize and simulate Sb/FC coagulation with good result by incorporating diffuse-layer model (DLM), indicating the impracticability of AS application for antimony removal.
242 citations
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TL;DR: In this paper, the influence of phase-change material composition on amorphous phase stability, crystallization rate, nucleation probability, optical constants and media noise is reported for materials with a growth dominated crystallization mechanism.
Abstract: The influence of phase-change material composition on amorphous phase stability, crystallization rate, nucleation probability, optical constants and media noise is reported for materials with a growth dominated crystallization mechanism. Two material classes have been studied, doped Sb–Te and doped Sb-based compositions. The material properties of both are greatly influenced by their composition, and in a similar way. For both materials systems hold that the antimony content especially influences the crystallization rate, amorphous phase stability and media noise of the phase-change material. Compositions rich in antimony generally show high crystallization rates, low archival life stability and high media noise. The material properties are further influenced by the presence of dopants like tellurium, germanium, gallium, indium or tin. Germanium and tellurium reduce the crystallization rate, but are essential to increase the amorphous phase stability. Dopants like tin or indium are added to increase the c...
238 citations
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TL;DR: In this article, the determination of arsenic, bismuth, germanium, antimony, selenium, tin and tellurium by reaction with sodium borohydride in dilute hydrochloric acid followed by measurement with atomic-absorption spectrophotometry in an argon-hydrogen flame was made.
Abstract: A study has been made of the determination of arsenic, bismuth, germanium, antimony, selenium, tin and tellurium by conversion into the hydrides by reaction with sodium borohydride in dilute hydrochloric acid followed by measurement with atomic-absorption spectrophotometry in an argon-hydrogen flame. A general study, involving 48 elements, of interferences has been carried out and it has been shown that significant interference occurs in many instances but that the procedure is simple to carry out and gives a considerable increases in sensitivity and detection limits for the elements listed, with the exception of tin, for which high blank values were obtained owing to the presence of tin in the sodium borohydride reagent.
237 citations
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TL;DR: In this paper, the authors investigated the maximum adsorption of antimony on the sand of Haro river (10 mg-1 g) with respect to the selection of an appropriate electrolyte, shaking time, and amount of sand.
236 citations