The best (and best-known) Pulaski Day tribute comes from one-time Chicagoan Sufjan Stevens. On his album Illinois, Stevens used âCasimir Pulaski Dayâ to remember both the holiday and his friend, whoâd been battling bone cancer.
Definition of ammonia for Students. 1 : a colorless gas that is a compound of nitrogen and hydrogen, has a sharp smell and taste, can be easily made liquid by cold and pressure, and is used in cleaning products and in making fertilizers and explosives. 2 : a solution of ammonia and water.
Nitrogen gas is an industrial gas produced by the fractional distillation of liquid air, or by mechanical means using gaseous air (pressurised reverse osmosis membrane or pressure swing adsorption). Nitrogen gas generators using membranes or pressure swing adsorption (PSA) are typically more cost and energy efficient than bulk delivered nitrogen.