Hydrogen is one of the least dense gases known in the world, with only air's...1/14, i.e.,0 At 0°C and under standard atmospheric pressure, the density of hydrogen is0.0899 g/LHydrogen can be used as a filling gas for airships and balloons (due to its flammability, it is not very safe, and airships now mostly use helium for filling). Hydrogen is primarily used as a reducing agent.
Hydrogen is used for diseases.
Basic Introduction Edit
Introduction
Chinese Name:Hydrogen
Alias:Pure hydrogen;Liquid Hydrogen;High-purity hydrogen;Compressed hydrogen
Product Name:Hydrogen
English Alias:-Compressed hydrogen; molecular hydrogen
CAS:133-74-0
EINECS:215-605-7
Chemical Formula:H2
Molecular weight:2.0157
Hydrogen is produced through the electrolysis of water, yielding hydrogen and oxygen gases.
Safety Protection
Deuterium is non-toxic and asphyxiating.
Hydrogen is highly flammable and explosive; a loud bang during combustion indicates impure hydrogen and an explosion may occur.
So, enough attention must be given to this. See hydrogen for more information.
Flammability
Henan hydrogen is a flammable gas, accounting for a volume fraction of 0.00005 in the air.4%Please provide the Chinese content that needs to be translated into American English.75%Hydrogen combustion enthalpy change is -286 kJ/molManufacturer Production:
2 H2(g) + O2(g) → 2 H2O(l); ΔH = -572 kJ/mol
Zhengzhou hydrogen supply4%Please provide the Chinese content you would like translated into American English.74%Mixed with air or occupy5%Please provide the Chinese content to be translated.95%A gas explosive when mixed with chlorine at certain concentrations, it is easily ignited by heat, sunlight, or sparks. The ignition point of hydrogen is500 °CPure hydrogen and oxygen mixture emits ultraviolet light when burned.
Because hydrogen is lighter than air, its flame tends to rise quickly, thus causing less harm than the combustion of hydrocarbons. Hydrogen reacts with all elemental oxidizing agents. Hydrogen spontaneously reacts with chlorine (under light) at room temperature. Hydrogen and fluorine gases can explode when mixed in the dark and cold, producing potentially hazardous hydrochloric or hydrofluoric acids.
Emergency Response for Hydrogen Fire
Evacuate personnel from the leaked pollution area to the upwind location and isolate them, strictly controlling entry and exit. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and fire-resistant protective clothing. Try to cut off the source of the leak. Ventilate properly to accelerate dispersion. If possible, use exhaust fans to direct the leaked gas to an open area or install appropriate nozzles to burn it off. Properly dispose of the leaking container; repair and inspect it before reuse. Firefighting method: cut off the gas source. If the gas source cannot be cut off immediately, do not extinguish the burning gas. Cool the container with water spray, and, if possible, move the container away from the fire to an open area. Fire extinguishing agents: fog, foam, carbon dioxide, and dry powder.
Industrial Use
1.Hydrogen is a primary industrial raw material and a significant industrial gas as well as specialty gas in Zhengzhou, Henan. It finds extensive applications in petrochemicals, electronics, metallurgy, food processing, float glass, fine organic synthesis, aerospace, and more. Additionally, hydrogen is an ideal secondary energy source (secondary energy refers to energy that must be produced from a primary energy source like solar or coal). Generally, hydrogen combines with oxygen. This characteristic makes it a natural reducing agent used in processes to prevent oxidation. In the high-temperature processing of glass manufacturing and the production of electronic microchips, hydrogen is added to nitrogen protective gas to remove residual oxygen. In the petrochemical industry, hydrogen is added to refine crude oil through desulfurization and hydrogenation cracking. Another important use of hydrogen is in the hydrogenation of fats in products like margarine, cooking oils, shampoos, lubricants, household cleaners, and others. Due to its high fuel properties, the aerospace industry uses liquid hydrogen as fuel.
2.Raw materials for synthetic ammonia, synthetic methyl alcohol, synthetic hydrochloric acid; metallurgical reducing agent; hydrodesulfurization agent in oil refining.
Cautionary Notes
Hydrogen is a colorless, odorless, non-toxic, flammable and explosive gas. It poses an explosive risk when mixed with fluorine, chlorine, oxygen, carbon monoxide, or air. Particularly, a mixture of hydrogen and fluorine can spontaneously explode at low temperatures and in darkness. The mixture with chlorine has a volume ratio of...1：1When exposed to light, it can also explode. Hydrogen, being colorless and odorless, produces a transparent flame upon combustion, making its presence difficult to detect by the senses. In many cases, ethyl mercaptan, a臭 compound, is added to hydrogen to make it detectable by smell and to give the flame a color.
Hydrogen is non-toxic and inert in the body, but an increase in its concentration in the air can cause asphyxiation due to oxygen deficiency. Like all cryogenic liquids, direct contact with liquid hydrogen can cause frostbite. A spill of liquid hydrogen and its sudden, widespread evaporation can also lead to environmental oxygen deficiency and may form explosive mixtures with air, potentially causing fire and explosion accidents. Mixture with air can form explosive blends, which will explode upon contact with heat or open flame. Being lighter than air, hydrogen gas can accumulate and linger in the attic during indoor use and storage, and a spark can trigger an explosion. Hydrogen reacts violently with halogens such as fluorine, chlorine, and bromine.
Hydrogen, being a flammable compressed gas, should be stored in a cool, well-ventilated storage room. The room temperature should not exceed30Keep away from flames and heat sources. Prevent direct sunlight. Store separately from oxygen, compressed air, halogens (fluorine, chlorine, bromine), and oxidizers. Absolutely avoid mixing storage and transportation. Facilities such as lighting and ventilation in the storage room should be explosion-proof, with switches located outside the warehouse, and equipped with appropriate types and quantities of firefighting equipment. Prohibit the use of machinery and tools that may produce sparks. During inspection, pay attention to the product name and the bottle inspection date, using the earliest received items first. Handle with care to prevent damage to cylinders and accessories.
Product Brand:Nian Long
Packaging:Steel Cylinder
Specs:40L
Material:Regular
