Used as a reducing agent in textile dyeing processes, helping to fix dyes on fabrics and improve color consistency. Commonly employed in leather tanning to assist in the penetration of tanning agents and control pH during processing.

Serves as a precursor in the production of formic acid by adding concentrated acid to the sodium formate solution and distilling to separate the formic acid.

Acts as a de-icing agent for roads, runways, and in winter construction applications (e.g., preventing freezing in concrete or as an antifreeze in coolants), offering lower environmental impact and reduced corrosion compared to chloride-based alternatives.

Utilized in oil and gas drilling as a component in completion and workover fluids due to its ability to form high-density, low-damage brines.

Also serves in wastewater treatment to enhance biological removal of nitrogen compounds like nitrates through bioaugmentation, and in laboratory chemical analysis for applications such as ion chromatography or heavy metal capture in wastewater samples prior to final treatment.

Used in some refrigeration and heating systems as a heat transfer fluid additive for its antifreeze and corrosion-inhibiting properties.