Supplier of industrial, medical and food grade gases | dry ice
Nitrogen
Nitrogen is a colourless and odourless gas. The gas is chemically inert, non-combustible and oxygen suppressing. Nitrogen is present in air with 78.1% vol. Nitrogen serves in liquid, frozen form as freezing medium in the food industry and with the transport with refrigerated vehicles. Since nitrogen is an inert, odourless and tasteless gas, it is often used as atmosphere for the packaging of foodstuffs.
In the metal industry and mechanical engineering Nitrogen is used for the heat treatment of various types of metal and as a means of pressure in tanks or pipes. Also in chemical processes is nitrogen often used, for example in the synthesis of ammonia.
Physicochemical constants
| Symbol | N2 |
|---|---|
| Average molecular weight (kg/mol) | 28.01 |
| Density of the gas (kg/m3 at 1.013 bar and 0 °C) | 1.251 |
| Relative density of the gas (air = 1) | 0.967 |
| Boiling point 1 bar | - 195.8 °C (77.3 K) |
| Melting point 1 bar | - 210.0 °C (63.1 K) |
| Critical temperature | t = - 147 °C (126.2 K) p = 55 bar |
| Self-ignition temperature | Non-flammable |
1 litre liquid nitrogen releases 691 litres of gas at 15 °C and 1 bar.
Application areas
Specific gases with a higher degree of purity for applications in laboratories
Inertisation of storage tanks with nitrogen or CO2 to reduce the oxygen concentration
Delivery forms
Gas form - Cylinders
| Content | Diameter | Height | Weight | Pressure (bar) | Pressure of Gas |
|---|---|---|---|---|---|
| 50 l | 22.9 cm | ca. 1.7 m | ca. 75 kg | 200 | 10.0 m3 |
| 45 l | 22.9 cm | ca. 1.55 m | ca. 65 kg | 200 | 9.0 m3 |
| 27 l | 20.4 cm | ca. 1.00 m | ca. 45 kg | 200 | 5.4 m3 |
| 10 l | 14.0 cm | ca. 1.00 m | ca. 25 kg | 200 | 2.0 m3 |
| 5 l | 13.0 cm | ca. 0.55 m | ca. 10 kg | 200 | 1.0 m3 |
More information about our cylinders
Gas form – Cylinder bundles
| Content | Length | Width | Height | Total Weight | Bar | Vol. |
|---|---|---|---|---|---|---|
| 12 bottles (45l) | 1050 | 800 | 1840 | +/- 1000 kg | 150 | 80 m3 |
| 12 bottles (45l) | 1050 | 800 | 1840 | +/- 1000 kg | 200 | 108 m3 |
| 12 bottles (50l) | 1050 | 800 | 1990 | +/- 1200 kg | 200 | 120 m3 |
More information about our cylinder bundles
Cylinder identification
Colour (according to NBN-EN 1089):
- The ogive is painted in black RAL 9005
- The cylindrical part is painted is painted in dark grey RAL 7031
Stop cock connection: G 5/8” - right / external (NBN226/DIN477)
Stop cock material: brass
Identification: ISO-sticker with ADR-data and H - and P-sentences according CLP
Equipment
Piping systems are pressure and product-linked and the design must therefore be taken care of by competent people in observance with the current standards and legislation.
Each gas with its specific purity requires suitable material. For every application the appropriate material can be supplied such as: mufflers, flow meters, filters, valves, pressure gauges...
Specification of the quality
Cylinders (gas)
| Name | N2 (vol. %) | H2O vol. ppm | O2 + Ar vol. % | O2 vol. ppm | CO2 vol. ppm | CnHm vol. ppm |
|---|---|---|---|---|---|---|
| 2.5 ind. | ≥ 99.5 | ≤ 50 | ≤ 0.5 | - | - | - |
| 5.0 (foodgrade) * | ≥ 99.999 | ≤ 1 | - | ≤ 5 | ≤ 1 | ≤ 1 |
* Cylinders with sticker indication 5.0 (food grade)
Bulk (liquid, frozen)
| Name | N2 (vol. %) | H2O vol. ppm | O2 + Ar vol. % | O2 vol. ppm | CO2 vol. ppm | CnHm vol. ppm |
|---|---|---|---|---|---|---|
| 4.5 | ≥ 99.995 | See specification sheet (on request) | See specification sheet (on request) | See specification sheet (on request) | See specification sheet (on request) | See specification sheet (on request) |
Transport and storage is provided here in vacuum insulated containers (thermos)
Safety information
See the safety information sheet (SDS) nr: 089A (gas) and B (liquid, frozen).