Liquid Nitrogen Safety Liquid Nitrogen Safety 1.
Liquid nitrogen can cause terrible burns.
When handling large quantities, a full length apron will minimize the chance of a spill going into your shoes, where it might destroy some cubic centimeters of flesh before you can get your shoes and socks off. Do not use a funnel. Liquid nitrogen will condense oxygen from the air. Guard against pressure build-up by using a pressure relief vessel or a venting lid. Glass Dewars must be taped solidly around the outside.