Helium is a colorless, odorless and tasteless inert gas which has no toxic properties. A member of the rare gas chemical family, it is 1/7 as heavy as air , and is mainly sourced from natural gas wells. Liquid Helium at -452°F is the coldest liquefied gas. Helium has a wide range of uses including cooling superconductive magnets coils in MRI machines, pressurizing rocket rule, creating inert atmospheres for welding and heat treatment, and inflating balloons and even airbags.
Features
- Colorless, odorless, nonflammable inert gas
- Non-reactive gas
- Asphyxiant in high concentrations
- Balloon and shielding gas
- Combustion, melting, and cutting processes
Specifications
Cylinder
- Connection Valve (CGA) : CGA 580
- Cylinder Size : 80
- Cylinder Volume (lbs, l, or ft3) : 73 ft3
- Cylinder Material : High Pressure Steel
Technical
- Gas : Helium
- Symbol : He
- Chemical Symbol : He
- Gas Grade : Industrial
- Molecular Mass : 4.003 g/mol
- Specific Volume : 96.7 ft3/lb (6.0 m3/kg)
- CAS Number : 7440-59-7
Shipping
- Shipping Name : Helium, Compressed
- Hazard Class : 2.2
- UN Number : 1046
- Label : Nonflammable
Safety
- Physical state : Gas
- Appearance : Colorless gas
- Color : Colorless
- Odor : Odorless
- Melting point : -272 °C
- Boiling point : -268.93 °C
- Critical temperature : -268 °C
- Critical pressure : 230 kPa
- Density : 0.166 kg/m_
- Relative gas density : 0.14
- Solubility : Water: 1.5 mg/l
- Oxidizing properties : None
