The Use of Liquid Nitrogen in Minneapolis Laboratory Research


Toll Company has been producing PurityPlus® liquid nitrogen for Minneapolis-area laboratory use from our earliest days. The one essential characteristic that makes this commodity so useful in such a diverse array of laboratory applications – most notably as a refrigerant – is its capability of sustaining temperatures considerably lower than the freezing point of water.

An earlier blog we’ve posted outlines the use of nitrogen in food processing. In its dense, readily conveyable liquid form (which doesn’t have to be pressurized), we deliver it for laboratory applications as diverse as …

  • cryogenics – involving the realization and examination of low temperature extremes and how materials behave at such temperatures;
  • cryonics – the safeguarding of biological tissue (blood, reproductive cells, surgical samples, even human bodies) at unusually low temperatures in order to resuscitate them and reanimate them sometime in the future; also as a way to cryoconserve genetic assets;
  • energy storage (being a “vehicle” for it);
  • insuring that various scientific detection instruments operate with greater efficiency; and
  • generating lower pressures in laboratory vacuum systems.

As a coolant, liquid nitrogen is primarily applied by the laboratories we serve …

  • to achieve superconductivity in high-temperature superconductors;
  • to conserve the liquid helium cooling systems of high-field superconducting magnets, such as those used in nuclear magnetic resonance spectrometers and magnetic resonance imaging systems, at a very low temperature;
  • in cooling baths and other testing situations meant to promote very low-temperature chemical reactions;
  • in vacuum-pump traps; and
  • in astronomy cameras utilizing CCD image sensors.

These examples, as far-ranging as they are, scarcely cover liquid nitrogen’s use in the laboratory. Our Minneapolis customers commonly discover their own, singular uses for it, just as they do for nitrogen in its gaseous state – which, of course, we also deliver.

The upshot of it is, an increasing number of scientific, medical, and industrial research facilities in these parts are relying on us for the PurityPlus® nitrogen and liquid nitrogen they must have to reach their research goals. They’ve found us to be a trusty, accommodating source of these commodities. And they’ve come to count not only on our supplying them when they need them, but also on their verifiable quality, our reasonable prices, and the deft, personalized service of our team. Contact Toll Company, your Minneapolis PurityPlus® Partner, today for every laboratory nitrogen and liquid nitrogen need.