Erbium(III) carbonate

  1. Home
  2. Wiki
Erbium(III) carbonate
Names
IUPAC name
Erbium(III) carbonate
Other names
  • Dierbium tricarbonate
  • Erbium carbonate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 228-003-4
  • monohydrate: 620-661-4
  • InChI=1S/3CH2O3.2Er/c3*2-1(3)4;;/h3*(H2,2,3,4);;/q;;;2*+3/p-6
    Key: SKXKDIXGQVABHP-UHFFFAOYSA-H
  • monohydrate: InChI=1S/3CH2O3.2Er.H2O/c3*2-1(3)4;;;/h3*(H2,2,3,4);;;1H2/q;;;2*+3;/p-6
    Key: JGMPMNQKIPWYKQ-UHFFFAOYSA-H
  • C(=O)([O-])[O-].C(=O)([O-])[O-].C(=O)([O-])[O-].[Er+3].[Er+3]
  • monohydrate: C(=O)([O-])[O-].C(=O)([O-])[O-].C(=O)([O-])[O-].O.[Er+3].[Er+3]
Properties
Er2(CO3)3
Molar mass 514.542 g·mol−1
negligible[1]
Solubility soluble in acids[1]
Hazards[2]
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P271, P280, P302, P304, P362, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Erbium(III) carbonate is an erbium compound with the chemical formula Er2(CO3)3.

Preparation

[edit]

Erbium carbonate can be made by the thermal decomposition of erbium(III) trichloroacetate which can be made by the reaction between erbium(III) oxide and trichloroacetic acid.[1]

Er2O3 + 6 CCl3CO2H → 2 Er(CCl3CO2)3 + 3 H2O
2 Er(CCl3CO2)3 → Er2(CO3)3 + side products

Alternatively, the poor solubility of erbium carbonate in water can be used to precipitate it from an aqueous solution of erbium(III) ions and carbonate ions.[citation needed]

2 Er3+ + 3 CO32− → Er2(CO3)3

Properties

[edit]

Erbium carbonate thermally decomposes to erbium(III) oxide upon heating.

Er2(CO3)3 → Er2O3 + 3 CO2

This can be used to produce nano particles of erbium oxide as erbium carbonate can be selectively precipitated into particles with an average size of 36 nm.[3] Smaller sizes between 10 nm and 20 nm have also been reported.[4]

It has a low solubility in water but dissolves in acids like perchloric acid.[1]

It reacts with the chelator thenoyltrifluoroacetone by losing the three carbonate ions.[5]

References

[edit]
  1. ^ a b c d Firsching, F. Henry; Mohammadzadei, Javad (1986). "Solubility products of the rare-earth carbonates". Journal of Chemical & Engineering Data. 31 (1): 40–42. doi:10.1021/je00043a013. Retrieved 2025-08-15.
  2. ^ "Erbium carbonate hydrate, 99.90%". MilliporeSigma. Retrieved 2025-08-15.
  3. ^ Rahimi-Nasrabadi, Mehdi; Pourmortazavi, Seied Mahdi; Karimi, Meisam Sadeghpour; Aghazadeh, Mustafa; Ganjali, Mohmmad Reza; Norouzi, Parviz (2017). "Statistical optimization of experimental parameters for synthesis of two efficient photocatalyst: erbium carbonate and erbium oxide nanoparticles". Journal of Materials Science: Materials in Electronics. 28 (20): 15224–15232. doi:10.1007/s10854-017-7400-x. Retrieved August 15, 2025.
  4. ^ Titov, A. A.; Klimenko, M. A.; Opolchenova, N. L.; Eremenko, Z. V.; Stepanova, N. N.; Mikhlin, E. B. (2009). "Nanocrystalline erbium oxide powders synthesized by the solid-state method from carbonates, oxalates, and hydroxides". Theoretical Foundations of Chemical Engineering. 43 (5): 743–746. doi:10.1134/S0040579509050224. Retrieved August 15, 2025.
  5. ^ Zolotareva, Nataliya V.; Semenov, Vladimir V.; Cherkasov, Anton V. (2014). "Reaction of erbium(iii) carbonate with thenoyltrifluoroacetone: The molecular structure of hydrate hydroxonium tetrakis(thenoyltrifluoroacetonato)erbate(iii)". Mendeleev Communications. 24 (3): 182–184. doi:10.1016/j.mencom.2014.04.021.