Antimony(III) acetate

Antimony(III) acetate

Names
IUPAC name Antimony(III) acetate
Other names Antimony triacetate Acetic acid, antimony(3+) salt
Identifiers
CAS Number	6923-52-0
ChemSpider	21839
Jmol interactive 3D	Image Image
PubChem	16685080
RTECS number	AF4200000
InChI InChI=1S/3C2H4O2.Sb/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3 Key: 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-3 Key: NSMVVPJZMRQLMR-ZHOQVWKLAW InChI=1/3C2H4O2.Sb/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3 Key: JVLRYPRBKSMEBF-DFZHHIFOAU
SMILES CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].[SbH3+3] CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].[Sb+3]
Properties
Chemical formula	Sb(CH3COO)3
Appearance	White powder
Density	1.22 g/cm³ (20 °C)
Melting point	128.5 °C (263.3 °F; 401.6 K) (decomposes to Sb2O3)
Hazards
NFPA 704	0 1 0
Lethal dose or concentration (LD, LC):
LD50 (Median dose)	4480 mg/kg (rat)
US health exposure limits (NIOSH):
PEL (Permissible)	TWA 0.5 mg/m^3 (as Sb)[1]
REL (Recommended)	TWA 0.5 mg/m^3 (as Sb)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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 acid:

Sb₂O₃ + 6 CH₃CO₂H → 2 Sb(CH₃CO₂)₃ + 3 H₂O

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.^[2]

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.

Salts and the ester of the Acetate ion
AcOH																	He
LiOAc	Be(OAc)2 BeAcOH											B(OAc)3	ROAc	NH4OAc	AcOAc	FAc	Ne
NaOAc	Mg(OAc)2											Al(OAc)3 ALSOL Al(OAc)2OH	Si	P	S	ClAc	Ar
KOAc	Ca(OAc)2	Sc(OAc)3	Ti(OAc)4	VO(OAc)3	Cr(OAc)2	Mn(OAc)2 MnAc3	Fe(OAc)2 FeAc3	Co(OAc)2, CoAc3	Ni(OAc)2	Cu(OAc)2	Zn(OAc)2	Ga(OAc)3	Ge	As	Se	BrAc	Kr
RbOAc	Sr(OAc)2	Y(OAc)3	Zr(OAc)4	Nb	Mo(OAc)2	Tc	Ru	Rh	Pd(OAc)2	AgOAc	Cd(OAc)2	In	Sn(OAc)2 SnAc4	Sb(OAc)3	Te	IAc	Xe
CsOAc	Ba(OAc)2		Hf	Ta	W	Re	Os	Ir	Pt(OAc)2	Au	Hg2(OAc)2, HgAc2	TlOAc Tl(OAc)3	Pb(OAc)2 Pb(OAc)4	Bi(OAc)3	Po	At	Rn
Fr	Ra		Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Uut	Fl	Uup	Lv	Uus	Uuo
		↓
		La(OAc)3	Ce(OAc)x	Pr	Nd	Pm	Sm(OAc)3	Eu(OAc)3	Gd(OAc)3	Tb	Dy(OAc)3	Ho(OAc)3	Er	Tm	Yb(OAc)3	Lu(OAc)3
		Ac	Th	Pa	UO2(OAc)2	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No	Lr