Life could not exist without compounds of sodium. These compounds hold
Blood contains sodium compounds in solution. Sodium compounds are used in
industry in the manufacture of chemicals and pharmaceuticals, in metallurgy,
in sodium vapor lamps, and in the production of hundreds of every day
products. One of the most common sodium compounds is table salt, or sodium
chloride. In its pure form sodium is a silver-white, soft and waxy metallic
that trace amounts in the stars and sun.
salt. The compound called soda is sodium carbonate. Crude sodium carbonate
as washing soda, or sal soda. Soda is used in manufacturing soap, glass,
dyestuffs, and explosives and as the basis for making other sodium compounds.
Other sodium compounds, with some of their uses, are: baking soda(sodium
bicarbonate), an ingredient of baking powder; borax (sodium borate), a food
preservative; and caustic soda, or lye (sodium hydroxide), used in
soapmaking. Some properties of sodium are: Symbol Na, Atomic Number 11,
Atomic Weight 22.9898, Boiling Point 1,621.2 F, and Melting Point 208.06 F.
Sir Humphry Davy in 1807. Lighter than water, pure sodium can be cut with a
knife at room temperature and is brittle at low temperatures. It conducts
emits electrons when exposed to light. In its pure form, sodium oxidizes
instantly when exposed to the air and reacts vigorously with water, seizing
remaining hydrogen is liberated and may ignite from the heat of the reaction.
Pure metallic sodium –usually obtained by the electrolysis of sodium
hydroxide– must be stored in kerosene to keep it from air and moisture. One
of the few uses of pure sodium is in vapor lamps along highways.