H2 China Professional High Safety Hydrogen Gas 99% Hydrogen Supply with best price

1. Description :
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3. Hydrogen is a chemical element, the symbol H, in the first place in the periodic table. The usual elemental form of hydrogen is hydrogen, colorless, odorless, odorless, is a highly combustible gas composed of diatomic molecules, hydrogen is the lightest gas. Hydrogen gas is used in medicine to treat diseases.

Colorless, odorless, tasteless and non-toxic flammable gas. The melting point is -259.2 ℃, the boiling point is -252.77 ℃, and the relative density (0 ℃, air =1) is 0.06960. Gas density: 0.08342 kg.111-3 (21.1℃, 101.3 kpa); The liquid density is 70.96 kg.n-3 (-252.8℃, 101.3 kpa). Critical temperature: -239.9 ℃, critical pressure: 1.297MPa. It dissolves in approximately 50 volumes of water at 0℃. It is asphyxiating at high concentrations. It spreads and penetrates extremely easily. Strong reducing agent, which has a penetrating effect on steel, causes hydrogen embrittlement. A hydrogen molecule is composed of two isomers, and the ratio of normal to secondary hydrogen at room temperature is 75:25. As the temperature decreases, the proportion of secondary hydrogen increases, accompanied by the release of conversion heat. At 20.4K, the balanced composition is 0.2:99.8. Hydrogen is non-toxic, but it cannot sustain life. It can form explosive mixtures when mixed with air and cause combustion and explosion when exposed to open flames or high heat. It can undergo violent chemical reactions with fluorine, chlorine, etc. When burning, no flame can be seen. It is prone to explosion when mixed with air, oxygen, chlorine, etc. The self-ignition temperature is 571.2t. The flammability limit in the air is 4.0% to 75.0%.

Production method
It is obtained through purification processes such as catalytic deoxidation, drying and low-temperature adsorption using electrolytic hydrogen as raw material. The various methods for its production also include low-temperature liquefaction, metal hydride hydrogen purification, palladium membrane diffusion, hollow fiber membrane diffusion, and pressure swing adsorption, etc.

Purpose
High-purity hydrogen is mainly used in the manufacturing of large-scale integrated circuits, providing a reducing atmosphere and serving as the backing gas for preparing mixed gases such as SiH4/H2, PH3/H2, B2 H6/H2, etc. In the production process of electro-vacuum materials and devices, the purity of hydrogen is also required to be very high. The metal components such as the anode, cathode and grid of the electron tube all need to undergo special hydrogen burning treatment. In addition, it is used as a protective gas and carrier gas in the epitaxial process of silicon and gallium arsenide.

Safety
Non-toxic. At very high concentrations, anesthetic effects can occur. Contact with liquids can cause frostbite. Flammable compressed gas. Store in a cool and well-ventilated warehouse. The temperature in the warehouse should not exceed 30℃. Keep away from fire sources and heat sources. Prevent direct sunlight. It should be stored separately from oxygen, compressed air, halogens (fluorine, chlorine, bromine), oxidants, etc. It is strictly forbidden to store and transport together. Prevent impact and exposure to sunlight.

1. Specification:

1. Product Name	Hydrogen
   CAS NO	1333-74-0
   MW	2.01588
   Appearance	Colorless gas
   EINECS NO	215-605-7
   Density	2.9275  g/cm3
   MF	H2
   Melting point	-259  ℃
   Boiling point	-253 ℃
   Solubility	0.00017g/100mL

1. Packing :
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1. Application:

• Industrial raw materials: such as the production of synthetic ammonia and methanol, also used to refine petroleum, hydrogenated organic matter as shrinkage gas, used in oxygen-hydrogen flame welders and rocket fuel.

  Nuclear fusion: The hydrogen isotopes deuterium and tritium can be used in nuclear fusion to provide energy.

  Clean Energy: Fuel used in cars and more .

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