Suppliers will not dispense liquid nitrogen into standard thermoses or unapproved containers. You must provide or purchase a Dewar , a specialized vacuum-insulated flask designed to safely vent gas as the liquid boils.
Yes, it is generally for private individuals and businesses to purchase liquid nitrogen without a special license or permit in most jurisdictions . While the substance itself is not a "controlled" item, its purchase and possession are subject to strict safety regulations and logistical requirements due to its hazardous nature. 1. Purchase Requirements is it legal to buy liquid nitrogen
Some university science departments sell small amounts to the public, often at lower rates than commercial distributors. Suppliers will not dispense liquid nitrogen into standard
