Barium Acetate

Barium acetate is a salt of barium(II) and acetic acid. It is toxic to humans, but has use in chemistry and manufacturing.

Structure & Formula

It has the chemical formula Ba(C2H3O2)2. This compound is also known as acetic acid and barium salt. The 2D structure of the compound is displayed below.

Structure of Barium Acetate
Structure of the compound (Source)

The compound has the IUPAC name as barium(2+) diacetate.


Barium acetate is produced by the reaction of acetic acid with barium carbonate,

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

This reaction takes place in solution and the desired product crystallizes out.

Barium sulfide can also be used instead of barium carbonate to obtain crystallized barium acetate,

BaS + 2CH3COOH → (CH3COO)2Ba + H2S

Chemical & Physical Properties

Molecular Weight (amu)255.41
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count0
Exact Mass of the compound255.931856
Topological Polar Surface Area80.3 Å2
Heavy Atom Count9
Formal Charge0
Isotope Atom Count0
Is it Canonicaliized?Yes
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count3
Physical AppearanceWhite Crystals or White Powder
Density (g/cm3)2.47
Melting Point (℃)450
Solubility in water(g/100ml)59


Barium acetate, upon heating, decomposes to carbonate. It reacts with sulfuric acid to give sulfate, hydrochloric acid to give chloride, and nitric acid to give nitrate.


The chemical compound is harmful if swallowed or inhaled.


  • The chemical compound finds application as a mordant for printing textile fabrics.
  • It is also used for drying paints and varnishes.
  • The compound is also used in lubricating oils.
  • Barium acetate, in chemistry, is used as a catalyst in organic synthesis.


How is barium acetate prepared?

The compound is prepared by the reaction of acetic acid with barium carbonate.
BaCO3 + 2CH3COOH → (CH3COO)2Ba + CO2 + H2O

What is the molar mass of barium acetate?

It has a molar mass of 255.415 g mol-1.

What is the chemical formula of barium acetate?

The compound has the chemical formula Ba(C2H3O2)2.

More on Inorganic Compounds

Sodium Dichromate (Na2Cr2O7)Sodium Potassium Tartrate (C4H4O6KNa.4H2O)
Mohr’s Salt (Fe(SO4)(NH4)2(SO4)(H2O)6)Lead Nitrate Pb(NO3)2
Sodium Sulfate (Na2SO4)Ammonium Bicarbonate ((NH4)HCO3)

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