For safety, filling is almost always handled by trained professionals at the supply facility rather than the customer. 2. Common Suppliers
Some university science departments sell small amounts to the public, often at lower rates than commercial distributors. is it legal to buy liquid nitrogen
Liquid nitrogen is not typically sold over-the-counter in retail stores. Common sources include: For safety, filling is almost always handled by
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 Liquid nitrogen is not typically sold over-the-counter in
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.
Although you do not need a license to buy it, suppliers typically require you to meet specific conditions before they will complete a sale:
Many local distributors (e.g., welding supply shops) may require you to review safety protocols or sign a liability waiver.