Europium(III) carbonate

Europium(III) carbonate
Identifiers
CAS Number	5895-48-7 anhydrous ; 13265-19-5 trihydrate ; 86546-99-8 hydrate ;
3D model (JSmol)	Interactive image;
ChemSpider	144969 ;
EC Number	227-582-0;
PubChem CID	165371;
CompTox Dashboard (EPA)	DTXSID40890604 ;
	InChI InChI=1S/3CH2O3.2Eu/c32-1(3)4;;/h3(H2,2,3,4);;/q;;;2*+3/p-6 Key: MBFNJTXDYDGXDL-UHFFFAOYSA-H;
	SMILES C(=O)([O-])[O-].C(=O)([O-])[O-].C(=O)([O-])[O-].[Eu+3].[Eu+3];
Properties
Chemical formula	Eu2(CO3)3
Molar mass	483.961 g/mol
Appearance	Solid
Melting point	Decomposes
Solubility in water	Insoluble; （1.94×10-6mol/L，30℃）
Related compounds
Other cations	Samarium(III) carbonate; Gadolinium(III) carbonate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Europium(III) carbonate is an inorganic compound with the chemical formula Eu₂(CO₃)₃.

Preparation

Europium(III) carbonate can be obtained by mixing and heating an aqueous solution of ammonium carbonate and europium(III) chloride.^[2] A saturated carbon dioxide ammonium carbonate solution (obtained from the reaction of hydrochloric acid and ammonium carbonate solution) can also precipitate europium carbonate from a europium salt solution.^[3] Other preparation methods include the thermal decomposition of europium(III) acetate^[4] and the reaction of a suspension of europium(III) oxide in water and supercritical carbon dioxide.^[5]

Chemical properties

Europium(III) carbonate is soluble in acid and releases carbon dioxide:^[1]

Eu₂(CO₃)₃ + 6 H⁺ → 2 Eu+3 + 3 H₂O + 3 CO₂↑

Europium(III) carbonate decomposes at high temperatures to form europium(III) oxide:

Eu₂(CO₃)₃ → Eu₂O₃ + 3 CO₂↑

References

[1]

[2]

[3]

[4]

[5]

Identifiers

CAS Number	5895-48-7 anhydrous^Y 13265-19-5 trihydrate^Y 86546-99-8 hydrate^Y
3D model (JSmol)	Interactive image
ChemSpider	144969^Y
EC Number	227-582-0
PubChem CID	165371
CompTox Dashboard (EPA)	DTXSID40890604
InChI InChI=1S/3CH2O3.2Eu/c32-1(3)4;;/h3(H2,2,3,4);;/q;;;2*+3/p-6 Key: MBFNJTXDYDGXDL-UHFFFAOYSA-H
SMILES C(=O)([O-])[O-].C(=O)([O-])[O-].C(=O)([O-])[O-].[Eu+3].[Eu+3]
Properties
Chemical formula	Eu₂(CO₃)₃
Molar mass	483.961 g/mol
Appearance	Solid
Melting point	Decomposes
Solubility in water	Insoluble （1.94×10^-6mol/L，30℃）^[1]
Related compounds
Other cations	Samarium(III) carbonate Gadolinium(III) carbonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references