Magnesium acetate

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A hygroscopic, white, water-soluble powder that is formed by the action of Acetic acid on Magnesium carbonate. Magnesium acetate has been used as either an aqueous and alcoholic based neutralizing/alkalizing agent in paper treatments although it has the potential for adversely affecting Lead and Silver components (Paper Catalog). Magnesium acetate is used industrially as a dye fixative in textile printing and as a Disinfectant.

Synonyms and Related Terms



  • Contact may cause irritation.
  • ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water and ethanol.

Composition Mg(C2H3O2)2-4H2O
CAS 142-72-3
Melting Point 80 C
Density 1.45 g/ml
Molecular Weight mol. wt. = 142.4

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
  • Book and Paper Group, Paper Conservation Catalog, AIC, 1984, 1989
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5688