Cryogenics

Cryogenic instruments and products are used to keep materials and samples cold and manipulate them in such as state. According to some definitions cryogenics indicates a field of temperatures lower than -180°C, but loosely it is also used for samples kept at cold temperatures of under -50°C, which is often cold enough for the longer-term storage and preservation of biological samples. Cryogenics also involves applica (more)tions such as liquefied natural gas storage, production and transportation and the handling of liquid oxygen or helium or nitrogen. There are many applications of cryogenic liquids in chemistry laboratories to condense gases and maintain sensitive chemicals at low temperatures. Correspondingly, there are special vessels and tools to store and transfer cryogenic materials materials.