Hydrogen (H2)



  •  Colorless
  •  Odorless
  •  Tasteless gas
  •  Inflammable or explosive when mixed with air, Oxygen, Chlorine, etc.



- In the synthesis of ammonia and in petroleum refining operations
- Hydrogenation of vegetable and animal oils and fats
- Used in metallurgy field because of its ability to reduce metal oxides and prevent oxidation of metals in heat treating certain metals and alloys
- Used for balloon inflation.
- Used in semiconductor industry
- Used in steel shafting manufacturing industry to enhance material hardness
- Used with oxygen in oxy-hydrogen welding & cutting, being employed largely in certain brazing operations, welding aluminum and magnesium.
- Cutting metals underwater
- For fabrication of quartz and glass
- Serves as non-oxidizing shield with other gases
- Fuel for powering missiles and rockets

- Used for hydrogenation of the following raw materials:
  Raw Materials                                     Product
  Phenol                                                  Cyclohexanol
  Nitrogen                                               Ammonia
  Naphthalene                                       Tetralin
  Olein                                                     Stearin
  Diisobutylene                                     Isooctane
  Carbon monoxide                              Methanol

- Used in Tungsten Electric Light Bulb



- Large amount of commercial hydrogen is prepared by the steam-hydrocarbon method, in which mixtures of hydrocarbons and steam are passed over nickel catalysts at high temperature.

- From water, it is prepared by electrolysis.


                                         Industrial Grade                  High Purity
Hydrogen                           99.70%                                99.99%max.
Oxygen                               Less than 0.1%                  Less than 10 vpm
Nitrogen                              Less than 0.2%                  Less than 100 vpm
Carbon Dioxide                  Less than 10 vpm              Less than 10 vpm
Carbon Monoxide              Less than 1 vpm                Less 1 vpm
Moisture                              Max. 100 ppm                    Less than 10 ppm

Note: Gas Composition may vary depending on customer’s requirement for their specific application.


- Hydrogen is non-corrosive and so any common metals is acceptable provided the equipment is designed to withstand process pressure and temperature. 

- Hydrogen embrittlement can occur under certain circumstances and needs to be allowed for in design.


- Compressed gas is commonly packed & shipped as a high  seamless, steel cylinders constructed to ICC specifications 3A or 3AA w/ nominal capacities such as 80,122,150,300 cu. ft. of gaseous hydrogen.

- Equipped w/ safety relief device which consist of a frangible disc designed to burst under excessive pressure


- High flammability (4% to 75%)
- High pressure leaks can auto ignite
- Burns with an almost invincible flame. Suspect leaks should be approached with extreme caution.
- Store away from oxidizing sources
- Use only in a well ventilated area
- No smoking or naked lights within the specified area
- Use only approved equipment which is flameproof
- Wear safety glasses, use leather / plastic safety gloves, wear overalls and safety shoes when handling cylinders
- Always use a regulator to connect to system
- Open cylinder valve slowly.  Close cylinder valve when not in use.
- Never transfer Hydrogen from one cylinder to another.
- Never tamper safety devices in valves & cylinders.  Keep sparks & flames away from cylinders, if valve of cylinders become - clogged w/ ice, thaw w/ warm water.
- Close the cylinder valve before disconnecting from the hose line of the manifold.
- Check cylinder valves from defects (e.g. worn connection, hazards near the installation, & leaks)
- In  case of relief valve cylinder opens while being transported or set, cylinders should be moved to a safe & ventilated place until the pressure lowers.
- Avoid oil or grease on gloves, valves, regulator gauges & fittings.
- Secure cylinders in an upright position.
- Keep valve opening away from the body.
- Check if all connections are gas tight, hose in good condition/ no leaks.
- Let all gas release from the regulator and close the cylinder valve when work is finished.
- Open cylinder valves slowly.  Stand to one side  and away from the regulator gauge.