Liquid Nitrogen: Cryopreservation, freezing food, medical uses | Gas Nitrogen: Inerting, welding, and chemical processing Air Liquide

: Stored in high-pressure cylinders at ambient temperatures . It is commonly used for HVAC purging, tire inflation, and beverage dispensing (e.g., nitro coffee or Guinness beer taps) .

: A cryogenic liquid stored at extremely low temperatures ( -196∘Cnegative 196 raised to the composed with power C

Buying nitrogen requires choosing between its gaseous and liquid forms, as each has different storage, safety, and supplier requirements. While nitrogen is widely used for industrial, food-grade, and laboratory purposes, it is not a standard over-the-counter item and typically involves specialized distributors . 1. Determine the Form and Grade