Liquid Helium is a colorless, extremely cold, odorless, nonflammable and inert substance which is the liquid form of Helium. Liquid Helium-4 is used as a cryogenic refrigerant; produced commercially to be used as a component of superconducting magnets. The price of liquid Helium ranges from $5 to $11 per liter. The price may vary from one state to another in the United States. Also the transportation cost should be taken under consideration to calculate the overall cost.