Erbium(III) acetate

Chemical compound From Wikipedia, the free encyclopedia

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]

Quick facts Names, Identifiers ...
Erbium(III) acetate
Names
Other names
Erbium acetate
Erbium triacetate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.042.774 Edit this at Wikidata
EC Number
  • 247-067-4
  • InChI=1S/3C2H4O2.Er/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3
    Key: DBUHPIKTDUMWTR-UHFFFAOYSA-K
  • CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].[Er+3]
Properties
Er(CH3COO)3
Appearance light pink solid
soluble
Hazards
GHS labelling:[1]
GHS07: Exclamation mark
Warning
H315, H319, H335
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).
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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

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