Praseodymium(III) carbonate

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Praseodymium(III) carbonate
2.svg Pr3+.svg 3.svg Carbonat-Ion.svg
Names
IUPAC name
Praseodymium(III) carbonate
Identifiers
3D model (JSmol)
EC Number
  • anhydrous:227-578-9
PubChem CID
  • anhydrous:InChI=1S/3CH2O3.2Pr/c3*2-1(3)4;;/h3*(H2,2,3,4);;/q;;;2*+3/p-6
    Key: XIRHLBQGEYXJKG-UHFFFAOYSA-H
  • anhydrous:C(=O)([O-])[O-].C(=O)([O-])[O-].C(=O)([O-])[O-].[Pr+3].[Pr+3]
Properties
Pr2(CO3)3
Molar mass 461.849 (anhydrous)
605.977 (octahydrate)
Appearancegreen crystals (octahydrate) [1]
insoluble
(1.99×10−6mol/L) [2]
Related compounds
Other anions
Praseodymium(III) chloroacetate
Praseodymium(III) sulfate
Praseodymium(III) nitrate
Other cations
cerium carbonate
neodymium carbonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Praseodymium(III) carbonate is an inorganic compound, with a chemical formula of Pr2(CO3)3. The anhydrous form is olive green, and many of its hydrates such as heptahydrate and octahydrate are known. [3] They are all insoluble in water. [2]

Contents

Preparation

Praseodymium(III) carbonate can be obtained by the hydrolysis of praseodymium(III) chloroacetate: [2] [4]

2 Pr(C2Cl3O2)3 + 3 H2O → Pr2(CO3)3 + 6 CHCl3 + 3 CO2

It can also be obtained by reacting sodium bicarbonate saturated with carbon dioxide with a praseodymium chloride solution. [4]

Chemical properties

Praseodymium(III) carbonate is soluble in acids, and emits carbon dioxide: [5]

Pr2(CO3)3 + 6 H+ → 2 Pr3+ + 3 H2O + 3 CO2↑

However, it is insoluble in water. [2]

Other compounds

Praseodymium(III) carbonate forms compounds with N2H4, such as Pr2(CO3)3•12N2H4•5H2O which is a pale green crystal that is slightly soluble in water but insoluble in benzene, with d20°C = 1.873 g/cm3. [6]

Related Research Articles

<span class="mw-page-title-main">Praseodymium(IV) oxide</span> Chemical compound

Praseodymium(IV) oxide is an inorganic compound with chemical formula PrO2.

Dysprosium(III) fluoride is an inorganic compound of dysprosium with a chemical formula DyF3.

Terbium(III) fluoride is an inorganic compound with chemical formula TbF3. It is hard to dissolve in water. It can be produced by reacting terbium(III) carbonate and 40% hydrofluoric acid at 40°C.

Thorium(IV) hydroxide is an inorganic compound with a chemical formula Th(OH)4.

<span class="mw-page-title-main">Cerium(IV) hydroxide</span> Chemical compound

Cerium(IV) hydroxide, also known as ceric hydroxide, is an inorganic compound with the chemical formula Ce(OH)4. It is a yellowish powder that is insoluble in water but soluble in concentrated acids.

<span class="mw-page-title-main">Scandium perchlorate</span> Chemical compound

Scandium perchlorate is an inorganic compound with the chemical formula Sc(ClO4)3.

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

Praseodymium(III) hydroxide is an inorganic compound with a chemical formula Pr(OH)3.

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

Neodymium(III) hydroxide is an insoluble inorganic compound with the chemical formula Nd(OH)3.

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

Samarium(III) hydroxide is an inorganic compound with chemical formula Sm(OH)3.

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

Erbium(III) hydroxide is an inorganic compound with chemical formula Er(OH)3.

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

Thulium(III) hydroxide is an inorganic compound with the chemical formula Tm(OH)3.

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

Terbium(III) hydroxide is an inorganic compound with chemical formula Tb(OH)3.

<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.

Neodymium(III) carbonate is an inorganic compound, a salt, where neodymium is in the +3 oxidation state and the carbonate ion is in the -2 oxidation state. It has a chemical formula of Nd2(CO3)3. The anhydrous form is purple-red, while the octahydrate is a pink solid. Both of these salts are insoluble in water.

<span class="mw-page-title-main">Europium compounds</span> Compounds with at least one europium atom

Europium compounds are compounds formed by the lanthanide metal europium (Eu). In these compounds, europium generally exhibits the +3 oxidation state, such as EuCl3, Eu(NO3)3 and Eu(CH3COO)3. Compounds with europium in the +2 oxidation state are also known. The +2 ion of europium is the most stable divalent ion of lanthanide metals in aqueous solution. Many europium compounds fluoresce under ultraviolet light due to the excitation of electrons to higher energy levels. Lipophilic europium complexes often feature acetylacetonate-like ligands, e.g., Eufod.

<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.

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

Cerium acetate is an inorganic compound with the chemical formula of Ce(CH3COO)3. It is a white powder that is soluble in water. Its 1.5 hydrate loses water at 133°C to obtain an amorphous anhydrous form, and the amorphous phase changes to crystal at 212°C, and phase changes again at 286°C.

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

Ytterbium(III) iodide is one of ytterbium's iodides, with the chemical formula of YbI3.

A niobate is an oxo-acid salt formed by niobium(V), and the common forms are metaniobate (NbO3−) and orthoniobate (NbO43−). The most common niobates are lithium niobate (LiNbO3) and potassium niobate (KNbO3).

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. 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.

References

  1. ↑ 《化学化工物性数据手册》 (无机卷) . 化学工业出版社. P320. 7.2 碳酸盐. ISBN   7-5025-3591-8
  2. 1 2 3 4 《无机化学丛书》. 第七卷 钪 稀土元素. 易宪武 黄春晖 等编.科学出版社. P174. 碳酸盐. ISBN   978-7-03-030574-9
  3. ↑ Rare earth elements: Main volume, Phần 3 (Leopold Gmelin; Verlag Chemie, 1994), page 22; 68. Retrieved 4 Feb 2021.
  4. 1 2 冯天泽. 稀土碳酸盐的制法、性质和组成. 《稀土》. 1989年第3期. pp.45～49
  5. ↑ PubChem. "Praseodymium Carbonate Octahydrate". pubchem.ncbi.nlm.nih.gov. Retrieved 2022-07-10.
  6. ↑ Uchenye zapiski: Serii︠a︡ khimicheskikh nauk (S.M. Kirov adyna Azărbai̐jan Dȯvlăt Universiteti; 1977), page 37. Retrieved 7 Feb 2021.
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