Supplier of industrial, medical and food grade gases | dry ice
Helium
Helium is a very light and non-combustible gas so it is perfectly suitable for filling balloons and airships. For this application it has been replacing for years the equally light but extremely flammable hydrogen. Helium is further used in laboratories and research departments. Helium is also used for leak detection.
Physicochemical constants
| Symbol | He |
|---|---|
| Average molecular weight (g/mol) | 4 |
| Density of the gas (kg/m3 at 1.013 bar and 0 °C) | 0.178 |
| Melting point | -272 °C |
| Boiling point 1 bar | -269 °C |
| Critical temperature | -268 °C |
| Flammability range | Not flammable |
| Relative density of the gas (air=1) | 0.138 |
| Soluble in water | 1.5 mg/l |
Applicable areas
Delivery form: Cylinders (gas)
| Content | Diameter | Height | Weight | Quantity of gas (150 bar) | Quantity of gas (200 bar) |
|---|---|---|---|---|---|
| 50 l | 22.9 cm | 1.7 m | ± 67 kg | 6.9 m3 | 9.1 m3 |
| 45 l | 22.9 cm | 1.55 m | ± 65 kg | 6.2 m3 | 8.2 m3 |
| 27 l | 20.4 cm | 1.23 m | ± 45 kg | 3.7 m3 | 4.9 m3 |
| 13 l | 14.0 cm | 1.20 m | ± 23 kg | 1.8 m3 | 2.5 m3 |
| 10 l | 14.0 cm | 1.00 m | ± 13 kg | 1.4 m3 | 1.8 m3 |
More information about our cylinders
Cylinder identification
Colour (according to NBN-EN 1089):
- the ogive is painted in brown RAL 8008
- the cylindrical part is painted in grey RAL 7031
Stop cock connection standard: W21,8x1/14'' - right/external
Stop cock material: brass
Identification : ISO-sticker with ADR-data and H- and P-sentences according CLP
Equipment
Piping systems are pressure and product-related and must be taken care of by competent people in observance with the current standards and legislation.
Each gas with its specific purity requires suitable material. IJsfabriek Strombeek can supply you with the appropriate material for every application such as: mufflers, flow meters, filters, valves, pressure gauges, etc.
Specification of the quality
| Name | He | H2O vol. ppm | O2 vol. ppm | N2 vol. ppm | CnHm vol. ppm | CO + CO2 vol. ppm |
|---|---|---|---|---|---|---|
| Balloon gas | +/- 96% | Not specified | ||||
| 4.6 | ≥ 99.996 | ≤ 3 | ≤ 3 | ≤ 10 | ≤ 1 | - |
| 5.0 | ≥ 99.999 | ≤ 2 | ≤ 1 | ≤ 5 | ≤ 0.5 | ≤ 0.5 |
| 6.0 | ≥ 99.9999 | ≤ 0.5 | ≤ 0.1 | ≤ 0.1 | ≤ 0.1 | ≤ 0.1 |
Safety information
See the safety information sheet (SDS) nr: 061A (gas).