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Chemical science background

Nuclear Magnetic Resonance (NMR) Spectroscopy Cooling

Cryogenic liquid helium and liquid nitrogen as coolants

Nuclear Magnetic Resonance Spectroscopy (NMR) imaging is an analytical chemistry research technology used to analyze the physical and chemical composition of materials. It is used, in particular, in university and hospital laboratories and in the food, biology, pharmaceutical and chemical industries.

Liquid helium is required to cool down the NMR magnet and liquid nitrogen can be used to absorb heat from outside the magnet and reduce the helium boil off rate.

Air Products is a leading global supplier of liquid helium and liquid nitrogen.

Download Secure and Reliable Helium Supply brochure

Air Products offer supply security and reliability you require

We offer a variety of distribution and storage options to match your need and budget.

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Gas Supply Options

Air Products gases, typically provided in gaseous and liquid form, enable customers in a wide range of industries to improve their environmental performance, product quality, and productivity.


An inert gas for cryogenic, heat transfer, shielding, leak detection, analytical and lifting applications


Useful as a gas, for its inert properties, and as a liquid for cooling and freezing. Virtually any industry can benefit from its unique properties to improve yields, optimize performance and make operations safer.


For Magnetic Resonance Imagery (MRI) and other cryogenic applications, Air Products supplies liquid helium in 60, 100, 250 and 500 liter ruggedly constructed and super-insulated dewars.