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: Some physics or chemistry departments at local universities sell surplus liquid nitrogen to the public or other researchers, often at lower rates than commercial vendors. 2. Required Equipment and Paperwork Liquid Nitrogen Generator | eBay

: Search for "welding supply stores" or "industrial gas near me". These locations often fill smaller Dewars for individual or lab use. liquid nitrogen buy usa

: Large distributors such as Airgas and Air Products provide various supply modes, including portable cylinders, microbulk, and large-scale bulk delivery. : Some physics or chemistry departments at local