Dispensing Instructions:

Liquid nitrogen has also been used as a method for cooling concrete for over twenty years. Liquid nitrogen (LN) is an inert cryogenic fluid with a temperature of − 196 °C [− 320 °F].

If you need to move a dewar between floors do not travel with it in the elevator or allow anyone else to be present in the elevator. Instead use a buddy system, signage, elevator lock-out key, or other appropriate means to transport and receive the dewar from an elevator.

1. Nitrogen is to be dispensed only into smaller Dewars which either (a) have carrying handles or (b) are on wheels or (c) are 500 mL or smaller, and which have pressure relief valves or pressure venting lids.
2. Ensure the door to the room housing the liquid nitrogen storage tank is open.

Gaseous nitrogen is shipped and stored in high-pressure cylinders, tubes, or tube trailers depending upon the quantity required by the user. Containers are designed and manu- factured according to applicable codes and specifications for the pressures and temperatures involved.

Disposal of liquid nitrogen should be done outdoors in a safe place. Pour the liquid slowly on gravel or bare earth where it can evaporate without causing damage. Do not pour the liquid on the pavement.

∎ Wear a face shield and safety goggles, whenever handling cryogenic liquid. ∎ Wear appropriate insulated gloves.

When liquid nitrogen is exposed to the air, it can turn into a gas. Oxygen levels can drop when this happens and can lead to headaches, lightheadedness and even the loss of consciousness.

The answer is yes but being glass, it would smash when it is warm too. But it’s a very good question because some types of glass would suffer a thermal shock if you poured liquid nitrogen in them. When you pour liquid nitrogen into a glass, the inside surface cools very rapidly and it contracts a little.

Tempered glass also shatters when exposed to sudden changes in temperature. For example, heated tempered glass breaks when exposed to dry ice (-109 degrees Fahrenheit) while heated ROBAX retains its integrity when exposed to extreme cold, such as dry ice or liquid nitrogen (-346 degrees Fahrenheit).

Liquid nitrogen is the colorless, odorless, clear liquefied form of nitrogen with a density of 0.807 g/ml at its boiling point (−195.79 °C (−320 °F)) while dry ice is an opaque solid with a density of 97.5189 lb/ft3 at 78.5 °C (109.3 °F). Both liquid nitrogen and dry ice can maintain extremely low temperatures.

Liquid Nitrogen Price List

The liquid nitrogen fertilizer had an average price of $344/ton. Anhydrous was 19% more expensive looking back to the prior month. The fertilizer had an average price of $625/ton.

The price of nitrogen fertilizers is directly related to the price of natural gas (methane). Manufacturing 1 ton of anhydrous ammonia fertilizer requires 33,500 cubic feet of natural gas. This cost represents most of the costs associated with manufacturing anhydrous ammonia.

The typical cost to generate nitrogen on site at a nitrogen purity of 99.5% would be $0.03 – $0.05 per M3 / $0.10 – $0.14 per 100 CF.

So what is air, exactly? It’s a mixture of different gases. The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.