May 7, 2012
John F. Hardy, site manager of Global Operations at Air Products, is shown with a container of liquid nitrogen.This liquid nitrogen is -321 degrees. Air Products produces liquid nitrogen, argon and oxygen. -- Staff Photo: Sue Ann Kuhn-Smith
Stories this photo appears in:
Air Products puts science lessons into action
Air Products and Chemicals Inc. collects air, breaks it apart and sells the separate components of air in their liquid form.
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