---
kind: "section"
citation: "27 C.F.R. § 21.122"
title: "27"
number: "21.122"
heading: "Potassium Hydroxide."
url: "https://uscodex.org/cfr/27/21.122"
---

# §21.122. Potassium Hydroxide.

- (a) **Color.** White or yellow.
- (b) **Specific gravity at 20 °C.** 1.95 to 2.10.
- (c) **Melting point.** 360 °C.
- (d) **Boiling point.** 1320 °C.
- (e) **pH (0.1M solution).** 13.5.

## Notes

### Amendments

[T.D. TTB-140, 81 FR 59462, Aug. 30, 2016]

### Authority

Authority: 5 U.S.C. 552(a); 26 U.S.C. 5242, 7805.

### Source

Source: T.D. ATF-133, 48 FR 24673, June 2, 1983, unless otherwise noted.

### Amendments

[T.D. TTB-140, 81 FR 59462, Aug. 30, 2016]