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As of 2014, liquid nitrogen can be purchased commercially from many online retailers, such as Praxair and AirProducts, and it can also be purchased on Amazon. Liquid nitrogen is nitrogen that is held at very low temperat... More »

www.reference.com Science Chemistry Chem Lab

Liquid nitrogen is available from many industrial suppliers as well as from online retailers. For example, Praxair in the United States sells compressed nitrogen gas and liquid nitrogen in various quantities. More »

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The boiling point for liquid nitrogen is approximately -321 degrees Fahrenheit. Liquid nitrogen has a variety of uses but can be dangerous if not handled properly. More »

www.reference.com Science Chemistry States of Matter
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