Due to its very low aqueous solubility, iron(II) molybdate precipitates out as a brown powder from the above reactions, which can then be obtained by filtration.
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^Zhang, Zhenyu; Li, Wenyue; Ng, Tsz-Wai; Kang, Wenpei; Lee, Chun-Sing; Zhang, Wenjun (2015-10-13). "Iron(ii) molybdate (FeMoO4) nanorods as a high-performance anode for lithium ion batteries: structural and chemical evolution upon cycling".J. Mater. Chem. A.3 (41):20527–20534.doi:10.1039/c5ta05723j.ISSN2050-7496.
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