Hydrogen:
Hydrogen is a flammable, colorless, transparent, odorless and tasteless gas, which is almost insoluble in water at normal temperature and pressure. Hydrogen is a simple substance formed by hydrogen, the chemical formula is H2, and the molecular weight is 2.0 1588. At normal temperature and pressure, hydrogen is a colorless, odorless, flammable and insoluble gas.
The density of hydrogen is 0.089g/L (101.325kpa, 0℃), which is only114 of that of air, and it is the lowest known gas in the world. Therefore, hydrogen can be used as the filling gas for airships and hydrogen balloons (airships are now filled with helium because of its flammability and low safety). Hydrogen reacts with nonmetals with high electronegativity to show reducibility, and reacts with active metals to show oxidation.
Preventive measures for nitrogen:
1, strengthen equipment safety management, conduct regular technical analysis and system leak detection for pipelines and valves that are prone to corrosion damage, and thoroughly overhaul the equipment during regular maintenance.
2. Open flame is strictly prohibited in the fire and explosion-proof area of the factory, and personnel entering the area should wear antistatic clothing or pure cotton work clothes; The use of mobile phones and other communication equipment is prohibited in this area; Electrical facilities in the fire and explosion-proof area, including lighting lamps and switches, should be explosion-proof, with good wire insulation and reliable connectors; Exposed thermal objects are strictly prohibited in fire and explosion-proof areas.
3. Strengthen the training of relevant safety technical knowledge, improve employees' awareness of the dangers of related equipment, establish and improve various rules and regulations, and conscientiously implement relevant safety regulations.
4, formulate emergency plans, strengthen the drills of emergency plans, and improve the ability of enterprise managers to deal with emergencies. In this accident, if the production personnel can be evacuated in time, casualties will be reduced and many dangers will be avoided.