Submitted by Red_Panagiotis t3_11l99pi in askscience
CocktailChemist t1_jby03y8 wrote
Reply to comment by mesouschrist in Why is water used as coolant since it is a poor conductor of heat? by Red_Panagiotis
Can’t say I’ve ever seen that for an NMR. A standard 400 MHz instrument has to be topped up with 70-100 L of liquid helium every 6-12 months.
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