Hydrogen CAS# 1333-74-0
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Chemical Name: Hydrogen
CAS No.: 1333-74-0
Molecular Formula: H2
Molecular weight: 2.02
Sample: Available
Hydrogen: The Complete Guide
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What is Hydrogen?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Hydrogen which has developed particularly rapidly in recent years. Do you know about Hydrogen?
- The official answer: Hydrogen, with the chemical formula H2 and molecular weight of 2.01588, is a very flammable gas at room temperature and pressure. Colorless, transparent, odorless, odorless, and insoluble in water gases. Hydrogen is the lowest known gas in the world, and the density of hydrogen is only 1/14 of that of air, that is, at 101.325 kPa (1 standard atmospheric pressure) and 0 °C, the density of hydrogen is 0.089g/L. Thus, hydrogen can be used as a filling gas for airships and hydrogen balloons (due to the flammability of hydrogen, the safety is not high, and the airship is now filled with helium). Hydrogen is a substance with the smallest molecular mass, strong reducivity, and is often involved in chemical reactions as a reducing agent.Hydrogen (H2) was first prepared in the early 16th century by placing metals in strong acids. In 1766–1781, Henry Cavendish discovered the element hydrogen, which burned to produce water, and Lavoisier named the element “hydrogenium” (meaning “substance that produces water”, “hydro” means “water”, “gen” means “generating”, and “ium” is the universal suffix of the element). In the 1850s, when the British physician B. Hobson wrote the New Edition of the Naturalist (1855), he translated “hydrogen” as “light gas”, meaning the lightest gas.In industry, hydrogen is generally produced from natural gas or water gas, and the method of electrolysis of water with high energy consumption is not used. The resulting hydrogen is used in large quantities for cracking reactions and the production of ammonia in the petrochemical industry. Hydrogen molecules can enter the lattice of many metals, creating a phenomenon of “hydrogen embrittlement”, making hydrogen storage tanks and pipes must the use of special materials (such as Monel alloys) and more complex designs.
What’s the application of Hydrogen?
Biological effects of hydrogenIndustrial use, hydrogen is the main industrial raw materials, but also the most important industrial gases and special gases, in the petrochemical, electronics industry, metallurgical industry, food processing, float glass, fine organic synthesis, aerospace and other aspects have a wide range of applications. At the same time, hydrogen is also an ideal secondary energy source (secondary energy refers to energy that must be produced by a primary energy source such as solar energy, coal, etc.). In general, hydrogen is easy to bind to oxygen. This property makes it a natural reducing agent for use in production to prevent oxidation. In the high-temperature processing process of glass manufacturing and the manufacture of electronic microchips, hydrogen is added to the nitrogen protective gas to remove residual oxygen. In the petrochemical industry, hydrochlorification is required to refine crude oil through desulfurization and hydrocracking. Another important use of hydrogen is the hydrogenation of fats in margarines, cooking oils, shampoos, lubricants, household cleaners and other products. Due to the high fuel properties of hydrogen, the aerospace industry uses liquid hydrogen as fuel.
Used as raw material for synthesizing ammonia, synthetic methanol, synthesizing hydrochloric acid, reducing agent for metallurgy, hydrogenation desulfurizer in petroleum refining, etc Medical use Overview of hydrogen-treated diseasesPathophysiological mechanisms of hydrogen therapy for diseases Therapeutic effect of hydrogen on cerebrovascular disease Therapeutic effect of hydrogen on neurodegenerative diseases Therapeutic effect of hydrogen on liver disease
Conclusion
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