Liquid Nitrogen Tank Safety

Special storage use and handling precautions are necessary in order to control these hazards.

Liquid nitrogen tank safety.

Liquid nitrogen is commonly used across monash university for the purposes of snap freezing and long term storage of biological samples and in cold traps on vacuum lines equipment. What is liquid nitrogen. Check the safety vents on liquid nitrogen tanks at least twice a week. Liquid nitrogen ln2 which in it s gaseous form makes up 78 of the air we breath is widely used in manufacturing plants medical facilities restaurants and on farms and ranches.

Cryogenic liquids are liquefied gases that. On 28th august 1992 there was a catastrophic failure of a storage tank containing liquefied nitrogen. Rupture of a liquid nitrogen storage tank japan. The failure resulted in the collapse of almost half of the manufacturing site and damage to houses and vehicles within a 400 metre radius.

Liquid nitrogen is inert colorless odorless non corrosive nonflammable and extremely cold. 28th august 1992 accident summary. Do not store liquid nitrogen for long periods in an uncovered container. Hazards associated with compressed gases include oxygen displacement fires explosions and toxic gas exposures as well as the physical hazards associated with high pressure systems.

Liquid nitrogen tank safety instructions. Ensure all safety valves and vent valves are unobstructed and functioning properly. Transport the large low pressure liquid nitrogen cylinders used on campus are equipped with wheels and. This post describes the dangers of working with a supposedly safe and inert gas nitrogen.

Ln 2 liquid nitrogen is a cryogenic liquid and is the liquefied form of nitrogen gas at atmospheric pressure and subzero temperature. When nitrogen is converted to liquid form it becomes a cryogenic liquid. Safe handling and use of liquid nitrogen characteristics of nitrogen 78 of atmosphere colorless odorless tasteless and nontoxic boils at 320 degrees fahrenheit 196 c non flammable will not support life gas is slightly lighter than air liquid nitrogen facts 1 cubic foot of liquid nitrogen will expand to 696 cubic feet of 100 gaseous nitrogen at 70 f the nitrogen gas can displace the. Nitrogen is inert and will not support combustion.

See your liquid nitrogen supplier for complete safety instructions. This upright tank is a stainless steel 180 l self pressurizing vessel which is used to store fill dispense liquid nitrogen to storage refrigerators or other containers wheels such as shown here are acceptable for transport across inner hallways surfaces elevator thresholds or onto scales if the wheels are 3 diameter or greater and the. Never tamper or modify safety devices such as cylinder valve or regulator of the tank liquid nitrogen should only be stored in well ventilated areas do not store in a confined space. Nitrogen makes up the major portion of the atmosphere 78 by volume.