Barium acetate

Barium acetate[1]
Names
IUPAC name
Barium acetate
Other names
Barium diacetate
Identifiers
3D model (JSmol)
Abbreviations Ba(OAc)2
ChEBI
ChemSpider
ECHA InfoCard 100.008.045 Edit this at Wikidata
EC Number
  • 208-849-0
RTECS number
  • AF4550000
UNII
  • InChI=1S/2C2H4O2.Ba/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2 checkY
    Key: ITHZDDVSAWDQPZ-UHFFFAOYSA-L checkY
  • InChI=1/2C2H4O2.Ba/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
    Key: ITHZDDVSAWDQPZ-NUQVWONBAA
  • [Ba+2].[O-]C(=O)C.[O-]C(=O)C
Properties
C4H6BaO4
Molar mass 255.415 g·mol−1
Appearance White solid
Odor odorless
Density 2.468 g/cm3 (anhydrous)
2.19 g/cm3 (monohydrate)
Melting point 450 °C (842 °F; 723 K) decomposes
55.8 g/100 mL (0 °C)
72 g/100mL (20 °C)
Solubility slightly soluble in ethanol, methanol
-100.1·10−6 cm3/mol (2H2O)
Structure
tetragonal
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Toxic, hazardous on ingestion
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
0
0
Lethal dose or concentration (LD, LC):
108 mg/kg (oral, rat)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Barium acetate (Ba(C2H3O2)2) is the salt of barium(II) and acetic acid. Barium acetate is toxic to humans, but it has use in chemistry and manufacturing.

Preparation

Barium acetate is generally produced by the reaction of acetic acid with barium carbonate:[2]

BaCO3 + 2 CH3COOH → (CH3COO)2Ba + CO2 + H2O

The reaction is performed in solution and the barium acetate crystalizes out at temperatures above 41 °C. Between 25 and 40 °C, the monohydrate version crystalizes. Alternatively, barium sulfide can be used:[2]

BaS + 2 CH3COOH → (CH3COO)2Ba + H2S

Again, the solvent is evaporated off and the barium acetate crystallized.

Properties

Barium acetate is a white powder, which is highly soluble: at 0 °C, 55.8 g of barium acetate can be dissolved in 100 g of water. It decomposes upon heating into barium carbonate.[citation needed]

Reactions

When heated in air, barium acetate decomposes to the carbonate. It reacts with acids: reaction with sulfuric acid, hydrochloric acid and nitric acid give the sulfate, chloride and nitrate respectively.[citation needed]

Uses

Barium acetate is used as a mordant for printing textile fabrics, for drying paints and varnishes and in lubricating oil. In chemistry, it is used in the preparation of other acetates; and as a catalyst in organic synthesis.[citation needed]

Barium acetate was featured in a 2001 episode of the television series Forensic Files, recounting the 1993 murder of a man by his teenage daughter (Marie Robards), though the episode and other crime documentary shows examining the Robards case excluded mention of the name of the chemical.

Barium acetate was featured in a 2014 episode of the crime documentary series Redrum.

Barium acetate was named as the choice poison of a teen's murder of her father in an episode of Deadly Women.[citation needed]

References

  1. ^ [1], JT Baker
  2. ^ a b Barium acetate Archived June 28, 2009, at the Wayback Machine, hillakomem.com, retrieved 30 June 2009

Further reading

  • I. Gautier-Luneau; A. Mosset (1988). "Crystal structure of anhydrous barium acetate". Journal of Solid State Chemistry. 73 (2): 473–479. Bibcode:1988JSSCh..73..473G. doi:10.1016/0022-4596(88)90133-8.
  • After husband's body was found burned, woman is suspected of poisoning another man