Cerium(III) selenate

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Cerium(III) selenate
2.svg Ce3+.svg
3.svg Selenate.png
Identifiers
3D model (JSmol)
PubChem CID
  • InChI=1S/2Ce.3H2O4Se/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6
    Key: IRJPWWVGQHXWSR-UHFFFAOYSA-H
  • anhydrous:[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[Ce+3].[Ce+3]
  • pentahydrate:[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[Ce+3].[Ce+3].O.O.O.O.O
Properties
Ce2(SeO4)3
Molar mass 709.121
Density 4.456g/cm3 (octahydrate) [1]
39.5g(0 °C)
2.51(100 °C)
Related compounds
Other anions
cerium(III) sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Cerium(III) selenate is an inorganic compound with the chemical formula Ce2(SeO4)3. It can be obtained by reacting selenic acid and cerium(III) carbonate, and the solvent is evaporated to precipitate crystals. [2] The double salt CsCe(SeO4)2·4H2O can be obtained from mixing cerium(III) selenate and cesium selenate in an aqueous solution, and then evaporating and crystallizing the solution. [3]

Related Research Articles

The selenate ion is SeO2−
4.

Selenic acid is the inorganic compound with the formula H2SeO4. It is an oxoacid of selenium, and its structure is more accurately described as O2Se(OH)2. It is a colorless compound. Although it has few uses, one of its salts, sodium selenate is used in the production of glass and animal feeds.

Langbeinites are a family of crystalline substances based on the structure of langbeinite with general formula M2M'2(SO4)3, where M is a large univalent cation, and M' is a small divalent cation. The sulfate group, SO2−4, can be substituted by other tetrahedral anions with a double negative charge such as tetrafluoroberyllate, selenate, chromate, molybdate, or tungstates. Although monofluorophosphates are predicted, they have not been described. By redistributing charges other anions with the same shape such as phosphate also form langbeinite structures. In these the M' atom must have a greater charge to balance the extra three negative charges.

<span class="mw-page-title-main">Cerium nitrates</span> Chemical compound

Cerium nitrate refers to a family of nitrates of cerium in the +3 or +4 oxidation state. Often these compounds contain water, hydroxide, or hydronium ions in addition to cerium and nitrate. Double nitrates of cerium also exist.

A sulfite sulfate is a chemical compound that contains both sulfite and sulfate anions [SO3]2− [SO4]2−. These compounds were discovered in the 1980s as calcium and rare earth element salts. Minerals in this class were later discovered. Minerals may have sulfite as an essential component, or have it substituted for another anion as in alloriite. The related ions [O3SOSO2]2− and [(O2SO)2SO2]2− may be produced in a reaction between sulfur dioxide and sulfate and exist in the solid form as tetramethyl ammonium salts. They have a significant partial pressure of sulfur dioxide.

A selenite fluoride is a chemical compound or salt that contains fluoride and selenite anions. These are mixed anion compounds. Some have third anions, including nitrate, molybdate, oxalate, selenate, silicate and tellurate.

A selenate selenite is a chemical compound or salt that contains selenite and selenate anions (SeO32- and SeO42-). These are mixed anion compounds. Some have third anions.

<span class="mw-page-title-main">Neodymium compounds</span> Chemical compounds with at least one neodymium atom

Neodymium compounds are compounds formed by the lanthanide metal neodymium (Nd). In these compounds, neodymium generally exhibits the +3 oxidation state, such as NdCl3, Nd2(SO4)3 and Nd(CH3COO)3. Compounds with neodymium in the +2 oxidation state are also known, such as NdCl2 and NdI2. Some neodymium compounds have colors that vary based upon the type of lighting.

<span class="mw-page-title-main">Terbium compounds</span> Chemical compounds with at least one terbium atom

Terbium compounds are compounds formed by the lanthanide metal terbium (Tb). Terbium generally exhibits the +3 oxidation state in these compounds, such as in TbCl3, Tb(NO3)3 and Tb(CH3COO)3. Compounds with terbium in the +4 oxidation state are also known, such as TbO2 and BaTbF6. Terbium can also form compounds in the 0, +1 and +2 oxidation states.

Praseodymium(III) selenate is an inorganic compound, the salt of praseodymium and selenic acid with the chemical formula Pr2(SeO4)3. It forms green crystals when hydrated.

<span class="mw-page-title-main">Cerium monoselenide</span> Chemical compound

Cerium monoselenide is an inorganic compound with the chemical formula CeSe. It exists in the form of Ce3+Se2−(e−).

<span class="mw-page-title-main">Thulium(III) selenate</span> Chemical compound

Thulium(III) selenate is an inorganic compound, with the chemical formula Tm2(SeO4)3. It can be obtained by reacting a thulium(III) oxide and selenic acid solution and crystallizing it. It crystallises with ammonium selenate in an aqueous solution to obtain NH4Tm(SeO4)2·3H2O.

<span class="mw-page-title-main">Erbium(III) selenate</span> Chemical compound

Erbium(III) selenate is an inorganic compound, with the chemical formula Er2(SeO4)3. It exists as an anhydrate or an octahydrate.

<span class="mw-page-title-main">Holmium(III) selenate</span> Chemical compound

Holmium(III) selenate is an inorganic compound with the chemical formula Ho2(SeO4)3. It exists in the anhydrous form and as an octahydrate. It can be obtained by dissolving holmium(III) oxide in selenic acid solution and evaporating and crystallizing it. It co-crystallizes with other selenates in solution to obtain complex salts such as K3Ho(SeO4)3·nH2O, NH4Ho(SeO4)2·3H2O and CH3NH3Ho(SeO4)2·5H2O.

Cerium(IV) selenate is an inorganic compound with the chemical formula Ce(SeO4)2.

<span class="mw-page-title-main">Zirconium selenate</span> Chemical compound

Zirconium selenate is an inorganic compound with the chemical formula Zr(SeO4)2. Its tetrahydrate can be obtained by the reaction of selenic acid and a saturated aqueous solution of zirconium oxychloride octahydrate (or zirconium hydroxide). The tetrahydrate belongs to the orthorhombic crystal system and is isostructural with Zr(SO4)2·4H2O. It loses water when heated and becomes anhydrous at 220-230 °C. It reacts with potassium fluoride to obtain K2Zr(SeO4)2F2·3H2O.

Caesium selanate is an inorganic compound, with the chemical formula of Cs2SeO4. It can form colourless crystals of the orthorhombic crystal system.

<span class="mw-page-title-main">Gadolinium(III) selenate</span> Chemical compound

Gadolinium(III) selenate is an inorganic compound with the chemical formula Gd2(SeO4)3. It exists as the anhydrate and octahydrate. The octahydrate transforms into the anhydrate when heated to 130 °C.

<span class="mw-page-title-main">Dysprosium(III) phosphate</span> Chemical compound

Dysprosium(III) phosphate is an inorganic compound with the chemical formula DyPO4.

Barium selenate is an inorganic compound with the chemical formula BaSeO4. It is isomorphous with barium sulfate, but its solubility is 18 times that of barium sulfate, and its thermal stability is worse than that of barium sulfate.

References

  1. ↑ 化学化工物性数据手册（无机卷）.刘光启 等主编.化学工业出版社.16.2 硒酸盐.P569
  2. ↑ Wickleder, Mathias S. (2005), Oxo-Selenates of rare earth elements, Handbook on the Physics and Chemistry of Rare Earths, vol. 35, Elsevier, pp. 45–105, doi:10.1016/s0168-1273(05)35002-1, ISBN   978-0-444-52028-9 , retrieved 2023-12-05
  3. ↑ OVANESYAN, S. M.; ISKHAKOVA, L. D.; TRUNOV, V. K. (1987-06-30). "ChemInform Abstract: Synthesis and Crystal Structure of CsLn(SeO4)2·4 H2O". ChemInform. 18 (26). doi:10.1002/chin.198726005. ISSN   0931-7597.
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