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Barium acetate

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Barium acetate[1]
Powdered Anhydrous Barium Acetate
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/c21-2(3)4;/h21H3,(H,3,4);/q;;+2/p-2 checkY
    Key: ITHZDDVSAWDQPZ-UHFFFAOYSA-L checkY
  • InChI=1/2C2H4O2.Ba/c21-2(3)4;/h21H3,(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):
921 mg/kg (oral, rat).[2][3]
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 ([Barium|Ba]2) is the salt of barium(II) and acetic acid. It is used in chemistry and manufacturing as a soluble source of barium and is toxic to humans.

Preparation

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Barium acetate is generally produced by the reaction of acetic acid with barium carbonate:[4]

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:[4]

BaS + 2 CH3COOH → (CH3COO)2Ba + H2S

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

Properties

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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.

Reactions

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Barium acetate can be used in metathesis reactions.

When heated in air, barium acetate decomposes to the carbonate.[citation needed]

Uses

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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]

[edit]

Barium acetate was featured in a 2001 episode of the television series Forensic Files, recounting the 1993 murder of a man by his teenaged daughter (Marie Robards). That episode and other crime documentaries about the Robards do not name 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

[edit]
  1. ^ [1], JT Baker
  2. ^ "Barium acetate". PubChem. Retrieved 15 November 2025.
  3. ^ "Safety Data Sheet: Barium acetate". Sigma-Aldrich. Retrieved 15 November 2025.
  4. ^ a b Barium acetate Archived June 28, 2009, at the Wayback Machine, hillakomem.com, retrieved 30 June 2009

Further reading

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