RT Journal Article
T1 Obtention and characterization of ferrous chloride FeCl_2•4H_2O from water pickling liquors
A1 Alcaraz, Lorena
A1 Sotillo Buzarra, Belén
A1 Marco, Jose F.
A1 Alguacil, Francisco J.
A1 Fernández Sánchez, Paloma
A1 López, Félix A.
AB As a hazardous waste, water pickling liquors must be properly treated. An alternative consists of promoting the formation of ferrous salts from this residue due to their higher ferrous content. Since FeCl_2•4H_2O is widely used in several applications, obtaining pure crystals of this material appears to be an interesting prospect. However, this compound has scarcely been investigated. In the present work, FeCl_2•4H_2O crystals were obtained from water pickling liquors. Their structural and morphological characteristics were investigated by X-ray diffraction, scanning electron microscopy as well as Mossbauer spectroscopy. In addition, the photoluminescence study of the obtained samples was also assessed. It was observed that after some aging time, the obtained crystals changed in colour from green to more yellowish. As such, the aged sample was also evaluated, and their structural characteristics were compared with the original crystals. Despite this, the obtained crystals exhibit a FeCl_2•4H_2O  structure, which is not modified with the aging of the sample.
PB MDPI
SN 1996-1944
YR 2021
FD 2021-09
LK https://hdl.handle.net/20.500.14352/4474
UL https://hdl.handle.net/20.500.14352/4474
LA eng
NO ©2021 By the AuthorsAuthors from the National Center for Metallurgical Research, Spanish National Research Council (CENIM-CSIC) would like to thank the financial support through the project DECAPVALUE. HIASA Contract ID 20200543.B.S. acknowledges the postdoctoral fellowship from the “Atracción de Talento” Program funded by the Comunidad de Madrid (2017-T2/IND-5465). P.F. acknowledges ComplutenseUniversity of Madrid and Banco Santander for support via the project UCM-Santander 2019 (PR87/19-22613). Financial support from the Spanish Agencia Estatal de Investigación through project RTI2018-095303-B-C51 is gratefully acknowledged.
NO Ministerio de Ciencia e Investigación (MICINN)
NO Comunidad de Madrid
NO Consejo Superior de Investigaciones Científicas (CSIC)
NO Universidad Complutense de Madrid / Banco de Santander
DS Docta Complutense
RD 10 abr 2025