If my memory serves me correctly you can make liquid nitrogen.
Liquid N is made in bulk from the the fractional distillation of liquid air. The basic process involves cooling air to below the boiling point of all the component gases and gradually raising the temperature to allow the boiling off, and subsequent removal, of each gas in turn.
In the case of air, the components boil off in this order:
Nitrogen....-210C
Oxygen......-193C
Argon.......-189C
Carbon dioxode solidifies at -78 C, so it is easily removed
Once the evolved gas, or fraction, has been seperated it can then be cooled down again to make it liquid.
When In Doubt.......MUMBLE