Liquid Nitrogen (LIN)

Overview

Liquid nitrogen is nitrogen cooled to about −196 °C. It is used directly for rapid freezing and cooling, and as a compact way to store large volumes of nitrogen gas for inerting, purging and blanketing on sites with high consumption.

Key Characteristics

• Cryogenic liquid at about −196 °C
• One liter of liquid expands to roughly 690 liters of gas
• Inert, colorless and non-flammable
• Can displace oxygen in enclosed spaces, so ventilation is essential

Common Applications

• Individual quick freezing (IQF) of food and cold-chain logistics
• Cryogenic preservation of biological samples
• Shrink fitting and cryogenic grinding
• Bulk nitrogen supply for inerting and purging

Available Supply Formats