Helium can be purchased at distributors of specialty gases. For example, Nanjing Liquefied Gas Company.
At the same time, you can also go to the factory that produces helium to buy it directly. Wuhan NewReady Specialty Gases, which has a large amount of helium for sale all year round, can meet your gas needs.
Because helium is a non-living thing, it is not suitable to appear in the major stores in real life, and the customers who need it, such as helium balloon filling, wedding companies, etc. need helium when they don't know where to go to buy it, because helium is an inert gas, non-combustible, non-explosive, relative to hydrogen is more secure, reliable, but the price is a little more expensive.
Applications of helium
Low-temperature cooling sources utilize liquid helium's low boiling point of -268.9°C. Liquid helium can be used for ultra-low-temperature cooling. And the ultra-low temperature cooling technology has a wider application in the field of superconductivity technology and other fields. Superconducting materials need to be in low temperature (around 100K) to show superconducting properties, and most of the time only liquid helium can realize such extremely low temperature in a relatively easy way.
Superconducting technology is used in the transportation industry for magnetic levitation trains and in the medical field for nuclear magnetic **** vibration imaging equipment. Balloon inflation due to helium is much less dense than air (the density of air is 1.29kg/m3, helium's density is 0.1786kg/m3), and is chemically extremely inactive, safer than hydrogen Hydrogen can be combusted in the air, which may cause an explosion.