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Antimony(III) acetate

Names
IUPAC name Antimony(III) acetate
Other names Antimony triacetate Acetic acid, antimony(3+) salt
Identifiers
CAS Number	6923-52-0
3D model (JSmol)	Interactive image
ChemSpider	21839
ECHA InfoCard	100.027.312
PubChem CID	16685080
RTECS number	AF4200000
UNII	F6Z6EKG4QY
CompTox Dashboard (EPA)	DTXSID3029283
InChI InChI=1S/3C2H4O2.Sb/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3Key: JVLRYPRBKSMEBF-UHFFFAOYSA-K InChI=1/3C2H4O2.Sb.3H/c3*1-2(3)4;;;;/h3*1H3,(H,3,4);;;;/q;;;+3;;;/p-3/r3C2H4O2.H3Sb/c3*1-2(3)4;/h3*1H3,(H,3,4);1H3/q;;;+3/p-3Key: NSMVVPJZMRQLMR-ZHOQVWKLAW InChI=1/3C2H4O2.Sb/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3Key: JVLRYPRBKSMEBF-DFZHHIFOAU
SMILES O=C(C)O(OC(C)=O)OC(C)=O
Properties
Chemical formula	Sb(CH3COO)3
Appearance	White powder
Density	1.22 g/cm (20 °C)
Melting point	128.5 °C (263.3 °F; 401.6 K) (decomposes to Sb2O3)
Hazards
NFPA 704 (fire diamond)	1 0 0
Lethal dose or concentration (LD, LC):
LD50 (median dose)	4480 mg/kg (rat)
NIOSH (US health exposure limits):
PEL (Permissible)	TWA 0.5 mg/m (as Sb)
REL (Recommended)	TWA 0.5 mg/m (as Sb)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). N verify (what is  ?) Infobox references

Antimony(III) acetate is the compound of antimony with the chemical formula of Sb(CH₃CO₂)₃. It is a white powder, is moderately water-soluble, and is used as a catalyst in the production of polyesters.

Preparation

It can be prepared by the reaction of antimony(III) oxide with acetic anhydride:

Sb₂O₃ + 3 C₄H₆O₃ → 2 Sb(CH₃CO₂)₃

Structure

The crystal structure of antimony(III) acetate has been determined by X-ray crystallography. It consists of discrete Sb(OAc)₃ monomers with monodentate acetate ligands. The monomers are linked together into chains by weaker C=O···Sb intermolecular interactions.

References

1. ^ NIOSH Pocket Guide to Chemical Hazards. "#0036". National Institute for Occupational Safety and Health (NIOSH).
2. Hall, M.; Sowerby, D. B. (1980). "Antimony(III) acetate and thioacetate: spectra and crystal structures". J. Chem. Soc., Dalton Trans. (8): 1292–1296. doi:10.1039/DT9800001292.

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