---
kind: "section"
citation: "21 C.F.R. § 184.1540"
title: "21"
number: "184.1540"
heading: "Nitrogen."
url: "https://uscodex.org/cfr/21/184.1540"
---

# §184.1540. Nitrogen.

- (a) **Nitrogen (empirical formula N<I>2</I>, CAS Reg.** No. 7727-37-9) is a colorless, odorless, flavorless gas that is produced commercially by the fractionation of liquid air.
- (b) The ingredient must be of a purity suitable for its intended use.
- (c) In accordance with [§ 184.1(b)(1)](/cfr/21/184.1.md?p=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)](/cfr/21/170.3.md?p=o-25) of this chapter.
  - (2) **The ingredient is used in food at levels not to exceed current good manufacturing practice.**
- (d) Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived.

## Notes

### Amendments

[48 FR 57270, Dec. 29, 1983, as amended at 73 FR 8607, Feb. 14, 2008]

### Authority

Authority: 21 U.S.C. 321, 342, 348, 371.

### Source

Source: 42 FR 14653, Mar 15, 1977, unless otherwise noted.

### Amendments

[48 FR 57270, Dec. 29, 1983, as amended at 73 FR 8607, Feb. 14, 2008]