---
kind: "section"
citation: "21 C.F.R. § 186.1316"
title: "21"
number: "186.1316"
heading: "Formic acid."
url: "https://uscodex.org/cfr/21/186.1316"
---

# §186.1316. Formic acid.

- (a) **Formic acid (CH<I>2</I>O<I>2</I>, CAS Reg.** No. 64-18-6) is also referred to as methanoic acid or hydrogen carboxylic acid. It occurs naturally in some insects and is contained in the free acid state in a number of plants. Formic acid is prepared by the reaction of sodium formate with sulfuric acid and is isolated by distillation.
- (b) **Formic acid is used as a constituent of paper and paperboard used for food packaging.**
- (c) The ingredient is used at levels not to exceed good manufacturing practice in accordance with [§ 186.1(b)(1)](/cfr/21/186.1.md?p=b-1).
- (d) Prior sanctions for formic acid different from the uses established in this section do not exist or have been waived.

## Notes

### Amendments

[45 FR 22915, Apr. 4, 1980]

### Authority

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

### Source

Source: 42 FR 14658, Mar. 15, 1977, unless otherwise noted.

### Amendments

[45 FR 22915, Apr. 4, 1980]