Antimony(III) acetate

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.

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
CompTox Dashboard (EPA)	DTXSID3029283
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 O=C(C)O[Sb](OC(C)=O)OC(C)=O
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 (fire diamond)	0 1 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^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

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.

Acetyl halides and salts of the acetate ion
AcOH																		He
LiOAc	Be(OAc)2 BeAcOH												B(OAc)3	AcOAc ROAc	NH4OAc	AcOOH	FAc	Ne
NaOAc	Mg(OAc)2												Al(OAc)3 ALSOL Al(OAc)2OH Al2SO4(OAc)4	Si	P	S	ClAc	Ar
KOAc	Ca(OAc)2		Sc(OAc)3	Ti(OAc)4	VO(OAc)3	Cr(OAc)2 Cr(OAc)3	Mn(OAc)2 Mn(OAc)3	Fe(OAc)2 Fe(OAc)3	Co(OAc)2, Co(OAc)3	Ni(OAc)2	Cu(OAc)2	Zn(OAc)2	Ga(OAc)3	Ge	As(OAc)3	Se	BrAc	Kr
RbOAc	Sr(OAc)2		Y(OAc)3	Zr(OAc)4	Nb	Mo(OAc)2	Tc	Ru(OAc)2 Ru(OAc)3 Ru(OAc)4	Rh2(OAc)4	Pd(OAc)2	AgOAc	Cd(OAc)2	In	Sn(OAc)2 Sn(OAc)4	Sb(OAc)3	Te	IAc	Xe
CsOAc	Ba(OAc)2	*	Lu(OAc)3	Hf	Ta	W	Re	Os	Ir	Pt(OAc)2	Au	Hg2(OAc)2, Hg(OAc)2	TlOAc Tl(OAc)3	Pb(OAc)2 Pb(OAc)4	Bi(OAc)3	Po	At	Rn
Fr	Ra	**	Lr	Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Nh	Fl	Mc	Lv	Ts	Og
		*	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
		**	Ac	Th	Pa	UO2(OAc)2	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No