Ferrous tungstate

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Ferrous tungstate
Names
IUPAC names
  • Iron(2+) dioxido(dioxo)tungsten [ACD/IUPAC Name]
  • Tungsten, diolatodioxo-, iron(2+) salt (1:1) [ACD/Index Name]
Other names
Iron(II) tungstate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.188 OOjs UI icon edit-ltr-progressive.svg
PubChem CID
  • InChI=1S/Fe.4O.W/q+2;;;2*-1;
    Key: SSWAPIFTNSBXIS-UHFFFAOYSA-N
  • [O-][W](=O)(=O)[O-].[Fe+2]
Properties
FeWO4, sometimes expressed FeO4W
Molar mass 303.68 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Ferrous tungstate (FeWO4) is an inorganic compound. It can be synthesized from iron(III) chloride and sodium tungstate under hydrothermal conditions with the presence of L-cysteine reduces Fe3+ to Fe2+. [1] Ferberite is composed of this compound. [2]

Contents

Synthesis techniques

Hydrothermal process

The hydrothermal process [ definition needed ] is a method for synthesizing FeWO4 crystals. Reagents used in this process are ethylenediaminetetraacetic acid disodium salt (Na2EDTA) and hexamethylenetetramine (HMT). Na2EDTA helps in controlling the morphology of FeWO4 crystals by binding to metal ions and preventing their premature precipitation and HMT acts as a pH buffer and a source of ammonia. [3]

See also

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References

  1. Zhang, Jian; Zhang, Yan; Yan, Jing-Yi; Li, Shi-Kuo; Wang, Hai-Sheng; Huang, Fang-Zhi; Shen, Yu-Hua; Xie, An-Jian (2012). "A novel synthesis of star-like FeWO4 nanocrystals via a biomolecule-assisted route" . Springer . 14 (4). doi:10.1007/s11051-012-0796-6.
  2. "Ferberite". 13 March 2014.
  3. Zhang, Jian; Wang, Yang; Li, Shikuo; Wang, Xiufang; Huang, Fangzhi; Xie, Anjian; Shen, Yuhua (2011). "Controlled synthesis, growth mechanism and optical properties of FeWO4 hierarchical microstructures". CrystEngComm. 13 (19): 5744. doi:10.1039/C1CE05416C.