Sodium Compounds

Sodium is frequently reacted with other elements to form useful compounds. Some important sodium compounds include table salt (NaCl), baking soda (NaHCO₃), sodium nitrate (NaNO₃), and sodium thiosulfate (Na₂S₂O₂ · 5H₂O). These compounds are used in the chemical, glass, metal, paper, petroleum, soap, and textile industries. 

Sodium tends to form water-soluble compounds, such as halides, sulfate, nitrate, carboxylates and carbonates. But examples of many insoluble sodium compounds such as sodium bismuthate (NaBiO₃), sodium octamolybdate (Na₂Mo₈O₂₅·4H₂O), sodium thioplatinate (Na₄Pt₃S₆), and sodium uranate (Na₂UO₄) is found in nature.