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
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.027.312
RTECS number
  • AF4200000
Properties
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)
Flammability code 0: Will not burn. E.g. waterHealth code 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
0
1
0
Lethal dose or concentration (LD, LC):
4480 mg/kg (rat)
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 0.5 mg/m3 (as Sb)[1]
REL (Recommended)
TWA 0.5 mg/m3 (as Sb)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
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.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.