(chemistry) The sodium salt of nitrous acid, NaNO₂; used as a food preservative and in many industrial applications.

(chemistry) a white, crystalline salt, NaN₃; it is explosive, and is used in automobile airbags

(chemistry) The sodium salt of sorbic acid.

borax

A sodium vapor lamp.

(inorganic chemistry) A strong, caustic alkali (NaOH) used in the manufacture of soap, detergents, paper, textiles and having many other industrial applications.

(inorganic chemistry) the sodium salt of nitric acid, NaNO₃; used as a food preservative, and as an oxidizing agent in explosives such as sodatol.

(mineralogy) A water-soluble mineral NaAl(SO₄)₂·12(H₂O); a form of alum in which potassium is replaced by sodium.

any soap made by the reaction of fat with sodium hydroxide

(chemistry) An alloy of sodium and mercury; used as a powerful reducing agent, and in certain types of sodium lamp.