Hydrogen is a colorless, odorless, non-toxic, flammable and explosive gas, and fluorine, chlorine, oxygen, carbon monoxide and air mixture were in danger of explosion; The mixture of hydrogen and fluorine spontaneous explosion in low temperature and dark environment; When hydrogen mixed with chlorine ratio was 1:1, under light can also be the explosion.Hydrogen is colorless and tasteless, burning flame is transparent, so its presence is not easy to be found in many cases. Usually we add ethyl mercaptan to the hydrogen, so that sensory awareness, and can be paid to the flame color.
Hydrogen non poisonous in on human physiology is inert, but if the increase in hydrogen content in the air will cause hypoxia asphyxia. As with all cryogenic liquids, direct contact with liquid hydrogen will cause frostbite. As with all cryogenic liquids, direct contact with liquid hydrogen will cause frostbite. Mix with air to form an explosive mixture, in case of heat or fire, it will explode. Gas is lighter than air, and when it is used and stored in the room, it is not easy to discharge the flat roof, which will cause the explosion. Hydrogen and fluorine, chlorine, bromine and other halogen will be a violent reaction.
Hydrogen is flammable compressed gas. Store in a cool, ventilated warehouse. Storage temperature should not exceed 30℃. Away from the fire, heat source. Keep out of direct sunlight. Should be stored separately with oxygen, compressed air, halogen (fluorine, chlorine, bromine), oxidizing agent and so on. Avoid mixed storage and transportation. Storage room lighting, ventilation and other facilities should be explosion-proof type, the switch is located outside the barn, equipped with the appropriate variety and quantity of fire equipment. Can not use easy to produce sparks of mechanical equipment tools. Acceptance should pay attention to the name, note the bottle inspection date, first use the earliest into the warehouse. When handling light light unloading, prevent the cylinder and accessories damaged.
Hydrogen fire emergency treatment
Rapid evacuation leakage pollution area personnel to windward, and to isolate, strictly limit access. Cut off the fire source. Recommended emergency personnel wear self positive pressure respirator, wear protective clothing for firefighters. As far as possible to cut off the source of leakage. Reasonable ventilation, accelerated diffusion. If possible, the leakage of gas with a exhaust fan to the open place or install appropriate nozzle burned. Leak container should be properly treated, repair, inspection and then re-use. Fire extinguishing method: cut off gas source. If you do not immediately cut off the gas source, it is not allowed to extinguish the burning of gas. Water cooling containers, if possible containers from fire to open. Extinguishing agent: fog water, foam, carbon dioxide, dry powder.