Sodium oxalate is an organic substance with the chemical formula Na₂C₂O₄, which is the sodium salt of oxalic acid and a reducing agent. It is a white crystalline powder, odorless, hygroscopic. Soluble in water but insoluble in ethanol.

Specifications

Melting Point : ∼250°C to 270°C (decomposition)

Density : 2.34g/mL

Odor : Odorless

Sensitivity : Hygroscopic

Solubility : Soluble in water and formic acid. Insoluble in ether and alcohol.

Applications

Sodium oxalate is used as reducing agent, as a primary standard for standardizing potassium permanganate solutions and as a neutralizer for exothermic acidic reactions. It finds application in metal cleaning preparations, metal extraction and separation, blueprint coatings, electroplating baths, special cement manufacturing, plant nutrition as well as in textile and pharmaceutical industries. It plays an important role to remove calcium ions from blood plasma and prevents blood clotting.