Barium Acetate is the salt of barium(II) and acetic acid with a chemical formula Ba(C2H3O2)2. It is a white powder that is highly soluble in water, and decomposes to Barium oxide on heating. Barium acetate has a role as a mordant and a catalyst. Acetates are excellent precursors for production of ultra high purity compounds, catalysts, and nanoscale materials.