Ammonium oxalate

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Colorless crystals that are used in dyeing textiles, polishing metals, and the electrolytic detinning of iron. Ammonium oxalate is also used as a detection reagent for Calcium and Lead.

Synonyms and Related Terms

diammonium salt of ethanedioic acid


  • Combustible.
  • Decomposes on burning to produce toxic fumes.
  • Toxic by ingestion.
  • Contact may cause irritation and burns.
  • Fisher Scientific: SDS

Physical and Chemical Properties

Soluble in water. pH of 0.1 M solution = 6.4

Slightly soluble in alcohol.

Composition C2H8N2O4
CAS 1113-38-8
Density 1.5 g/ml
Molecular Weight mol. wt. = 124.1

Resources and Citations

  • The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 556