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Monitoring of copper, arsenic and antimony levels in agricultural soils impacted and non-impacted by mining activities, from three regions in Chile May 2003 Journal of Environmental Monitoring 5(2 ...
01-04-2009· Antimony, in contrast, is not associated with the mineral ferric oxides or the biomats, but is substantially enriched in the silica matrix of the geyserite precipitates, up to 2 wt% as Sb 2 O 3. Understanding the mobility and partitioning behavior of these metalloids is critical for understanding their eventual impact on regional water management.
01-09-2013· An enrichment of antimony from 4 to 10 times higher was detected in road dust in Valparaiso, Chile, which correlates with the enrichment reported by our group in 2009 in the blood. On the other hand up to 70% of total antimony extracted from road samples was Sb(III) indicating an anthropogenic origin of this element.
Request PDF | Partitioning geochemistry of arsenic and antimony, El Tatio Geyser Field, Chile | The abundance of As and Sb in aqueous, mineral and biological reservoirs was examined at El Tatio ...
01-01-2015· A study of whole blood and its fractions in 45 port workers in Chile who were occupationally exposed to heavyweight vehicles found high levels of antimony in the blood, particularly in the erythrocyte fractions. Antimony levels were 5-10 times greater …
1850, Chile became the most important producer of copper ores .. Overview of a typical beneficiation process at a concentrator. 176. Copper .. Table 8. Average percentage distribution of the accompanying ele ments in copper smelting [20, p. 591]. Matte. Slag. Flue. Element dust. Arsenic. 35. 55. 10. Antimony. 30. 55. 15. Get a quote
For antimony determination by ET-AAS the use of a chemical modifier is unavoidable. Similar amounts of nickel or palladium were effective in stabilizing the antimony species present in soils and plant solutions; however, the best analytical signals were obtained using mixtures of this metals with NH 4 H 2 PO 4 and citric acid.
01-11-2015· Antimony emissions in Chile are predominated by Cu smelting production. Nevertheless, considering the limitation of mineral resource, nonferrous metals mining intensity will decrease gradually in the future. Consequently, antimony emissions by 2050 are predicted to be −66% ∼ 41% of 2010. 4.3.
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Antimony In Chile. Arsenic and antimony removal from copper concentrates by digestion with nahsnaoh.Department of metallurgical engineering, university of concepcin, edmundo larenas 285, concepcion, 4070371, chile.Search for more papers by this author.Department of chemical engineering, university of concepcion, edmundo.
Money laundering in Chile is a growing issue that is primarily narcotics-related. Chile criminalized money laundering under an Anti-Money Laundering (AML) Law in 1995, and later updated the Law in 2003 to expand upon predicate offenses. In addition to narcotics trafficking, which was criminalized in the original AML Law, offenses include ...
minerals.usgs.gov. Extractable copper, arsenic and antimony by EDTA solution from agricultural Chilean soils and its transfer to alfalfa plants (Medicago sativa L.) Ida De Gregori,* Edwar Fuentes, David Olivares and Hugo Pinochet Laboratorio de Quı´mica Analı´tica y Ambiental, Instituto de Quı´mica, Universidad Cato´lica de Valparaı´so, Avenida Brasil, 2950 Valparaı´so, Chile.
01-04-2017· The antimony contents varied from 0.24 to 0.32 μg g −1. Meanwhile Quiroz et al. found total antimony contents in soil samples from Chile regions that are affected by industrial activities varying from 1.5 to 6.4 µg g −1.
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This paper reports a comparative study of the concentration of three important environmental elements that are often found together in mineral deposits and then associated with mining activities; copper, arsenic and antimony. These elements were determined in 26 different agricultural soils from regions I, II and V in Chile, zones where the most important and biggest copper industries of this ...
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Determination of antimony in soils and vegetables by hydride generation atomic fluorescence spectrometry and electrothermal atomic absorption spectrometry. ... Valparaı´so, Chile. E-mail: [email protected] bLaboratoire de Chimie Analytique, Universite´ de Pau et des Pays de l'Adour, Avenue de l'Universite´, 64000 Pau, France
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El Tatio is a geyser field located in the Andes Mountains of northern Chile at 4,320 metres (14,170 ft) above mean sea level. Various meanings have been proposed for the name "El Tatio", including "oven" or "grandfather". It is the third-largest geyser field in the world and the largest in the Southern Hemisphere.. El Tatio is a geothermal field with many geysers, hot springs, and associated ...
The relationships between the concentrations of these elements in soils were also examined. The concentration ranges for copper, arsenic and antimony were 11–530; 2.7–202 and 0.42–11 mg kg −1 respectively. The copper concentrations in non-polluted soils from the north and central zone of Chile …
Antimony Solubility and Speciation in Aqueous Sulphuric Acid Solutions at 298 K Jesús M Casas Departamento de Ingeniería Química, Universidad de Chile, Beauchef 861, Santiago, Chile, and SGS‐Lakefield Research, SA Search for more papers by this author Gloria Crisóstomo. 24/7 Online] Monitoring of copper, arsenic and antimony levels in
Pure antimony metal is silver gray/white and brittle. Although actually a metal, like germanium and tellurium (of which more in forthcoming articles), antimony is also termed a metalloid. (A ...