Synthesis and characterization of ammonium jarosite with arsenic Conference Paper

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Overview

abstract

• Jarosite type compounds allow the incorporation of several elements of environmental importance such as arsenic, mercury, lead, chromium and thallium. Arsenic incorporated into the structure of jarosite can be stabilized in a wide range of environmental conditions, such as pH, temperature and particle size. Ammonium jarosite with incorporated arsenic was synthesized using the precipitation method in sulfate media, and several methods of characterization were used. XRD results showed that the obtained product is an ammonium jarosite with arsenic incorporated in the structure. Morphology showed spherical particles with majority sizes between 37-54 microns with rhombohedral crystals strongly joined together. According to the chemical analysis results, the approximate formula of the compound is: [(NH4)091(H 3O)0.09] Fe2.45 [(SO4)180 (AsO4)0.20] [(OH)4.35 (H2O) 1.65]. © 2014 by The Minerals,Metals %26amp; Materials Society.
• Jarosite type compounds allow the incorporation of several elements of environmental importance such as arsenic, mercury, lead, chromium and thallium. Arsenic incorporated into the structure of jarosite can be stabilized in a wide range of environmental conditions, such as pH, temperature and particle size. Ammonium jarosite with incorporated arsenic was synthesized using the precipitation method in sulfate media, and several methods of characterization were used. XRD results showed that the obtained product is an ammonium jarosite with arsenic incorporated in the structure. Morphology showed spherical particles with majority sizes between 37-54 microns with rhombohedral crystals strongly joined together. According to the chemical analysis results, the approximate formula of the compound is: [(NH4)091(H 3O)0.09] Fe2.45 [(SO4)180 (AsO4)0.20] [(OH)4.35 (H2O) 1.65]. © 2014 by The Minerals,Metals & Materials Society.

authors

• Flores M.U.
• Hernández J.
• Mireles I.
• Méndez J.E.
• Patiño F.
• Reyes I.A.
• Reyes M.

publication date

• 2014-01-01

published in

• TMS Annual Meeting  Proceedings

Research

keywords

• Ammonium jarosite; Arsenic; Characterization; Synthesis Approximation algorithms; Chemical analysis; Particle size; Particle size analysis; Precipitation (chemical); Sulfur compounds; Synthesis (chemical); Ammonium jarosite; Approximate formulas; Environmental conditions; Jarosite-type compounds; Precipitation methods; Rhombohedral crystals; Spherical particle; Synthesis and characterizations; Arsenic

Identity

Digital Object Identifier (DOI)

• 10.1002/9781118888056.ch74

Additional Document Info

start page

• 627

end page

• 636