Erbium(III) acetate

Erbium(III) acetate
Names
	Other names Erbium acetate; Erbium triacetate
Identifiers
CAS Number	25519-10-2 ;
3D model (JSmol)	Interactive image;
ChemSpider	147292;
ECHA InfoCard	100.042.774
EC Number	247-067-4;
PubChem CID	168385;
CompTox Dashboard (EPA)	DTXSID60890803 ;
	InChI InChI=1S/3C2H4O2.Er/c31-2(3)4;/h31H3,(H,3,4);/q;;;+3/p-3 Key: DBUHPIKTDUMWTR-UHFFFAOYSA-K;
	SMILES CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].[Er+3];
Properties
Chemical formula	Er(CH3COO)3
Appearance	light red solid
Solubility in water	soluble
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
Related compounds
Other cations	Holmium(III) acetate; Thulium(III) acetate
Related compounds	Erbium oxide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Erbium(III) acetate is the acetate salt of erbium, with the proposed chemical formula of Er(CH₃COO)₃. It can be used to synthesize some optical materials.^[2]

Physical properties

The tetrahydrate of erbium(III) acetate is thermally decomposed at 90 °C, giving a proposed anhydride:

Er(CH₃COO)₃·4H₂O → Er(CH₃COO)₃ + 4 H₂O

Continued heating to 310 °C will form ketene:

Er(CH₃COO)₃ → Er(OH)(CH₃COO)₂ + CH₂=C=O

At 350 °C, the proposed Er(OH)(CH₃COO)₂ loses acetic acid to yield a material of the formula ErOCH₃COO, forming Er₂O₂CO₃ at 390 °C, finally obtaining Er₂O₃ at 590 °C.^[3]

References

^ "Erbium(3+) acetate". pubchem.ncbi.nlm.nih.gov. Retrieved 22 July 2022.
^ Choi, M. H., & Ma, T. Y. (2008). Erbium concentration effects on the structural and photoluminescence properties of ZnO: Er films. Materials Letters, 62(12-13), 1835-1838.
^ G. A. M. Hussein (2001-08-28). "Erbium oxide from erbium acetate hydrate; formation, characterization and catalytic activity". Powder Technology. 118 (3): 285–290. doi:10.1016/S0032-5910(00)00384-3. ISSN 0032-5910. Retrieved 2019-02-01.

[1] "Erbium(3+) acetate". pubchem.ncbi.nlm.nih.gov. Retrieved 22 July 2022.

[2] Choi, M. H., & Ma, T. Y. (2008). Erbium concentration effects on the structural and photoluminescence properties of ZnO: Er films. Materials Letters, 62(12-13), 1835-1838.

[3] G. A. M. Hussein (2001-08-28). "Erbium oxide from erbium acetate hydrate; formation, characterization and catalytic activity". Powder Technology. 118 (3): 285–290. doi:10.1016/S0032-5910(00)00384-3. ISSN 0032-5910. Retrieved 2019-02-01.

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