184.1540—Nitrogen.
        
        (a) 
         Nitrogen (empirical formula N2, CAS Reg. No. 7727-37-9) is a colorless,  odorless, flavorless gas that is produced commercially by the fractionation of liquid air.
    
    
    
        
        (c) 
         In accordance with  § 184.1(b)(1), the ingredient is used in food with no limitations other than current good manufacturing practice. The affirmation of this ingredient as generally recognized as safe (GRAS) as a direct human food ingredient is based upon the following current good manufacturing practice conditions of use:
    
    
        
        (1) 
         The ingredient is used as a propellant, aerating agent, and gas as defined in  § 170.3(o)(25) of this chapter.
    
    
    
        
        (d) 
         Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived.