Nitrogen is an element found in the atmosphere that exists in both liquid and gaseous form and has an extremely low boiling point of minus 196 degrees Celsius (384.8 degrees Fahrenheit). Natural nitrogen is usually gaseous, which poses no harm and has no distinctive smell. Liquid nitrogen is dangerous as it expands when exposed to high temperatures. To make gaseous nitrogen into liquid form requires normal air. Liquid nitrogen can be produced in low or large quantities. Writer Bio
